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GS Paper: GS1

  • Natyashastra

    Why in the News?

    The Indira Gandhi National Centre for the Arts (IGNCA) organised an academic programme titled Natyashastra Synthesis of Theory and Praxis during the 20th Session of UNESCO’s Intergovernmental Committee for the Safeguarding of Intangible Cultural Heritage at the Red Fort, Delhi.

    About Natyashastra

    • Ancient Sanskrit treatise on performing arts
    • Title derived from Natya meaning dance and drama and Shastra meaning science
    • Composed by sage Bharata Muni
    • Dated between 2nd century BCE and 2nd century CE
    • Considered the earliest known treatise on performative arts in South Asia

    Core Themes of Natyashastra

    • Covers drama (natya), performance (abhinaya), music (sangita), emotion (bhava) and aesthetic experience (rasa)
    • Comprises around 36,000 verses
    • Justifies Indian drama as a medium of religious and moral enlightenment

    Global Recognition

    • Included in UNESCO’s Memory of the World Register
    • Recognised for its outstanding global cultural value

    About Indira Gandhi National Centre for the Arts (IGNCA)
    • An autonomous institution under the Ministry of Culture, Government of India

    Mandate of IGNCA

    • Documentation, preservation and dissemination of Indian arts and cultural heritage
    • Training of professionals in cultural studies

    Which one of the following is a work attributed to playwright Bhāsa? (2024)

    (a) Kavyaalankara 

    (b) Natyashasta 

    (c) Madhyama-vyoga 

    (d) Mahabhashya

  • Perumbidugu Mutharaiyar II (Suvaran Maran)

    Why in the News?

    A commemorative postage stamp honouring Perumbidugu Mutharaiyar II was recently released by the Vice President of India, highlighting his importance in early medieval South Indian history.

    About Perumbidugu Mutharaiyar

    Reign period: c. 705 AD to 745 AD
    • Also known as Suvaran Maran and Shatrubhayankar
    • Belonged to the Mutharaiyar lineage of Tamil Nadu
    • Known as a brave warrior, able administrator, and patron of learning
    • Fought alongside Pallava king Nandivarman II in several battles
    • Represents the phase of powerful Pallava feudatories gaining autonomy

    Religious and Cultural Patronage

    • Patron of Shaivism
    Jain monk Vimalachandra visited his court for religious and philosophical debates
    • Reflects religious tolerance and intellectual exchange

    Who were the Mutharaiyars

    • A prominent chieftain clan of early medieval Tamil Nadu
    • Served as feudatories of the Pallava dynasty
    • Gained political prominence as Pallava authority weakened
    • Eventually ruled as independent regional powers

    Territorial Influence

    • Dominated regions along the Cauvery river basin
    • Key areas: Thanjavur, Pudukkottai, Perambalur, Tiruchirappalli
    • Controlled fertile agrarian zones and cultural centres

    Architectural Contributions

    • Renowned temple builders under Pallava influence
    • Major contributors to rock cut cave temples
    • Cave temple activity continued till the early ninth century
    • Acted as a link between Pallava and early Chola architecture

    Consider the following events in the history of India: (2020)

    (1) Rise of Pratiharas under King Bhoja (2) Establishment of Pallava power under Mahendravarman – I (3) Establishment of Chola power by Parantaka – I (4) Pala dynasty founded by Gopala What is the correct chronological order of the above events, starting from the earliest time? (a) 2 – 1 – 4 – 3 (b) 3 – 1 – 4 – 2 (c) 2 – 4 – 1 – 3 (d) 3 – 4 – 1 – 2

  • Bison Horn Maria Dance and Dandami Madia Tribe

    Why in the News?

    The Bison Horn Maria dance of the Dandami Madia tribe was highlighted during recent village festivals in Jagdalpur, Bastar region of Chhattisgarh, showcasing the living tribal cultural heritage of central India.

    Dandami Madia Tribe

    • Also known as Maria
    • Sub group of the Gond tribe
    • Inhabits Bastar region of southern Chhattisgarh
    • Major areas: Darbha, Tokapal, Lohandiguda and Dantewada
    • Traditionally forest dependent community
    • Livelihood, rituals and beliefs closely linked to nature
    • Cultural roots trace back to the historic Gondwana region

    Bison Horn Maria Dance

    • One of the most distinctive tribal dances of India
    • Performed by both men and women
    • Symbolises hunting traditions, village rituals and harmony with nature
    • Men wear horn shaped headgear made of bamboo decorated with bison horns, feathers, shells and coloured cloth
    • Bead necklaces and brass anklets are integral to male attire
    • Women wear handwoven saris, heavy silver and brass ornaments
    • Jewellery often includes rupee coins ranging from ₹1 to ₹10
    • Musical instruments include drums and bamboo flutes

    Prelims Pointers

    • Dandami Madia are part of the Gond tribal group
    • Bastar region is a major hub of tribal art, dance and ritual traditions
    • Bison Horn Maria dance is both a ritualistic and cultural performance
    • Reflects India’s intangible cultural heritage preserved through oral tradition and practice

    Consider the following pairs: Tribe → State (2013)

    (1). Limboo (Limbu) : Sikkim (2). Karbi : Himachal Pradesh (3). Dongaria Kondh : Odisha (4). Bonda : Tamil Nadu Which of the above pairs are correctly matched? (a) 1 and 3 only (b) 2 and 4 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4

  • Delhi Parsi Anjuman Centenary  

    Why in the News?

    Delhi Parsi Anjuman DPA is celebrating its 100 years of establishment in 2025.

    About Parsis in India

    • Parsis migrated to India around 8th century CE from Persia modern day Iran due to religious persecution.
    • They followed sea trade routes and mainly settled in Gujarat and Maharashtra.
    • Known for contributions in trade industry law healthcare and public life.

    Parsis in Delhi

    • First Parsi settlement in Delhi dates to the 19th century.
    • Legend links early Parsi presence to Meherjirana the first Dastur invited by Mughal emperor Akbar during the 16th century.
    • Major influx occurred after British shifted capital from Calcutta to Delhi in 1911.
    • First recorded Parsi migrant to Delhi was Naowroji Kapadia from Bharuch Gujarat.

    Delhi Parsi Anjuman DPA

    • Established in 1925 by 40 trustees.
    • Location Bahadur Shah Zafar Marg New Delhi.
    • First President Naowroji Kapadia.
    • Meaning of Anjuman Persian word meaning congregation.
    • Objective Cultural spiritual and social hub for the Parsi community in Delhi.
    • Current Parsi population in Delhi around 500 in 2023-24.

    Key Institutions under DPA

    Dar-e-Mehr Zoroastrian fire temple established in 1961.
    • Only Zoroastrian fire temple in North India.
    • Dharamshala banquet hall and Katgara Hall newly renovated in 2025.

    Important Facts for Prelims

    • Delhi Parsi Anjuman founded in 1925.
    • Centenary year 2025.
    • Dar-e-Mehr in Delhi is the only fire temple in North India.
    • Parsis played a key role in shaping Delhi’s legal architectural and healthcare institutions.

    Which one of the following was the latest inclusion in the Intangible Cultural Heritage List of UNESCO? (2024)

    (a) Chhau dance 

    (b) Durga Puja 

    (c) Garba dance 

    (d) Kumbh Mela

  • Boreendo

    Why in the News?

    Boreendo, an ancient traditional musical instrument from Pakistan, has been inscribed on UNESCO’s List of Intangible Cultural Heritage in Need of Urgent Safeguarding.

    About Boreendo

    • Also known as Bhorindo
    • Traditional wind instrument from the Sindh region of Pakistan
    • Believed to be around 5,000 years old
    • Origins traced to Mohenjo Daro of the Indus Valley Civilisation

    Physical Features

    • Hollow spherical body with sound holes
    • Made of clay that is sun dried and kiln fired
    • Decorated using clay paint

    Cultural Practices

    • Played mainly by men
    • Women traditionally decorate the instrument
    • Used during winter bonfires, weddings, and local festivals

    UNESCO Significance

    • Listed under Intangible Cultural Heritage in Need of Urgent Safeguarding
    • Recognition highlights the risk of decline due to reduced practitioners and changing cultural practices
    • Aims to promote preservation, transmission, and awareness of the art form

    Prelims Pointers

    • Region: Sindh, Pakistan
    • Material: Clay
    • Type: Wind musical instrument
    • Civilisational link: Indus Valley Civilisation
    • UNESCO list focuses on endangered living traditions

    The famous female figurine known as ‘Dancing Girl’, found at Mohenjo-daro, is made of: (2025)

    (a) carnelian 

    (b) clay 

    (c) bronze 

    (d) gold

  • Australia social media ban on users aged under-16 kicks in

    Introduction

    Australia has enacted a first-of-its-kind law mandating that major social media platforms verify user age and remove accounts of children below 16 unless parents explicitly consent. The reform marks a sharp departure from earlier tech-driven self-regulation and responds to rising concerns over children’s mental health, grooming risks, harmful content, and the pressure of constant screen exposure. The move has been positioned as a “template for the world,” with global relevance as regulators struggle to manage Big Tech.

    Why in the news?

    Australia has become the first country globally to impose a minimum age for social media access, marking a structural shift in how online safety is governed. The legislation is significant because social media firms were previously allowed to operate on self-declared age checks, often exploited by under-16 users. 

    Australia’s Move Towards an Age-Restricted Internet Ecosystem

    1. Minimum age requirement: Platforms must block users under 16 unless parents consent.
    2. Verification mandate: Tech firms must take “reasonable steps” to verify age and remove under-age accounts.
    3. New regulatory law: The Online Safety Amendment (Social Media Minimum Age) Act creates enforceable obligations.
    4. Scope of platforms: Facebook, Instagram, YouTube, Snapchat, X, TikTok, Threads, Reddit covered.

    What Makes the Age-16 Cut-Off Significant?

    1. Based on mental-health indicators: Government-commissioned survey found 74% of children saw or heard disturbing content; 53% experienced online bullying; 27% faced personal attacks.
    2. Escalating harm to minors: 38% reported exposure to harmful content; 16% received sexualised images; 25% faced coercion or harassment.
    3. Self-harm risk: 17% saw content encouraging suicide or self-harm.
    4. Increased vulnerability: Under-16 users are at greater risk of grooming, hate speech, compulsive scrolling and pressure for online perfection.

    How Are Tech Companies Responding?

    1. Compliance with resistance: Firms say the rule may not improve safety unless implemented globally.
    2. Burden of verification: Companies argue age-verification tools are intrusive or inaccurate.
    3. Big Tech backlash: Meta has called it impractical; industry bodies say “it will not make kids safer.”
    4. Regulator’s stance: eSafety insists firms have long failed to prioritise child safety despite repeated warnings.

    How Does This Compare With India’s Approach?

    1. Parental consent focus: India allows minors to access social media with guardian approval; no age-16 prohibition.
    2. Law under review: India’s DPDP Act originally proposed a strict age-limit but relaxed it in 2023.
    3. Tech-industry influence: India’s softer position partly reflects concerns of over-regulation and digital inclusion.
    4. Existing obligations: Platforms must ensure safety of users but without mandatory age verification.
    5. Contrast in regulatory philosophy: Australia mandates verification; India relies on parental oversight.

    Why Is Australia Positioning Itself as a Global Template?

    1. First mover advantage: No other country has set a universal age-16 social media restriction.
    2. Evidence-backed regulation: Emphasis on child mental-health data, grooming cases, hate content rise.
    3. Model for Western democracies: May influence UK’s Online Safety Act and EU child-protection deliberations.
    4. Accountability push: Shifts burden onto platforms, not users or parents.

    Arguments Supporting the Ban

    1. Protects Mental and Emotional Health
      1. Lower exposure to harmful content and compulsive usage.
      2. Reduces anxiety, body-image issues, and cyberbullying.
    2. Ensures Safer Social Environments
      1. Decreases risks of grooming, harassment, stalking.
      2. Strengthens mechanisms of child protection.
    3. Encourages Healthy Childhood Development
      1. Promotes in-person socialisation, sports, hobbies.
      2. Protects attention spans and reduces digital addiction.
    4. Enhances Parental Participation
      1. Builds shared responsibility between state and family.
      2. Forms a bridge for conversations on digital behaviour.
    5. Holds Big Tech Accountable
      1. Platforms must prioritise safety over profit algorithms.
      2. Shifts burden from minors to corporations.

    Arguments Criticising the Ban 

    1. May Not Be Technically Feasible: 
      1. Age-verification technologies can be inaccurate or intrusive.
      2. Teens may bypass rules using VPNs, fake IDs, or loopholes.
    2. Restricts Freedom and Digital Expression
      1. Limits creativity, art-sharing, community-building.
      2. Curtails a teen’s right to express identity.
    3. Affects Social Inclusion: Digital communities are key social spaces; absence may create social disconnectedness.
    4. May Push Children to Unregulated Spaces
      1. Alternative apps, gaming communities, or private groups may become more dangerous.
      2. Harder for parents to monitor.

          5.Differential Impact Across Socio-economic Groups: Children with tech-savvy families bypass       easily; others comply strictly; this may lead to inequality in digital exposure.

    Conclusion

    Australia’s social media age-restriction law marks a decisive shift toward child-centric digital governance. By mandating age verification, compelling parental consent, and imposing significant penalties, it challenges Big Tech’s long-standing autonomy. Its global implications lie in redefining platform accountability and inspiring nations to re-examine their youth-safety frameworks. For India, the development provides an important reference point as it balances innovation with child protection in digital spaces.

    PYQ Relevance

    [UPSC 2023] Child cuddling is now being replaced by mobile phones. Discuss its impact on the socialization of children.

    This PYQ directly relates to how digital exposure alters children’s socialisation, a core concern behind Australia’s under-16 social media ban. It links the societal impact of early phone use with the need for stronger regulation to protect minors online.

  • Swahid Diwas – PM’s Tribute 

    Why in the News

    The Prime Minister paid tribute on Swahid Diwas (10 December 2025), honouring the martyrs of the Assam Movement and reaffirming the Government’s commitment to strengthening Assam’s culture and ensuring holistic development of the state.

    About Swahid Diwas

    • Observed in Assam to commemorate the martyrs of the Assam Movement (1979–1985).
    • Recognises those who died during the agitation for identification, deletion and deportation of illegal migrants to protect the demographic, cultural and linguistic identity of the Assamese people.

    About the Assam Movement  

    • Period: 1979–1985.
    • Led by AASU (All Assam Students’ Union) and AAGSP.
    • Trigger: Concerns over illegal immigration from Bangladesh affecting Assam’s demographic balance.
    • Core demands:
      • Detection of illegal migrants
      • Updating electoral rolls
      • Preservation of Assamese culture and identity
    • Culmination: Assam Accord (1985) signed between AASU, AAGSP and the Government of India; provided mechanisms for identifying and addressing illegal immigration.
    UPSC Prelims Pointers

    • Swahid Diwas → linked to Assam Movement, not to national movements.
    • Assam Movement → resulted in Assam Accord 1985.
    • Led mainly by AASU and AAGSP.
    • Focus → illegal migration, cultural identity, demographic protection.
    • Term “Swahid” means martyr in Assamese.
    Satya Shodhak Samaj organized (2016)

    (a) a movement for upliftment of tribals in Bihar 

    (b) a temple-entry movement in Gujarat 

    (c) an anti-caste movement in Maharashtra 

    (d) a peasant movement in Punjab

  • Bankim Chandra Chattopadhyay 

     Why in the news?

    • The family of Bankim Chandra Chattopadhyay, author of Vande Mataram, recently praised the Prime Minister for commemorating the 150 years of the national song.

    About Bankim Chandra Chattopadhyay

    • Born: 27 June 1838, Kantalpara, 24 Parganas (Bengal Presidency)
    • Died: 8 April 1894
    • Also known as Bankim Chandra Chatterjee.
    • Regarded as “Sahitya Samrat” (Emperor of Literature) of Bengali literature.
    • One of the first two graduates of the University of Calcutta; later obtained a law degree.
    • Served in the British Indian government.

    Literary Contributions

    Early Works

    • Began as a poet, later shifted to fiction.
    • First Novel: Durgeshnandini (1865) – first Bengali romance.

    Major Works

    • Kapalkundala (1866), Mrinalini (1869), Vishbriksha (1873), Chandrasekhar (1877), Rajani (1877), Rajsimha (1881) and Devi Chaudhurani (1884)

    Most Famous Work

    • Anand Math (1882)
      • Based on the Sannyasi Rebellion (late 18th century).
      • Contains “Vande Mataram”, later adopted as the national song.

    Vande Mataram

    • Written in Sanskrit.
    • First sung by Rabindranath Tagore at the 1896 Kolkata Session of the Indian National Congress.
    • Adopted as the National Song on 24 January 1950 by the Constituent Assembly.
    • Symbol of Indian nationalism and anti-colonial struggle.
    With reference to the book “Desher Katha” written by Sakharam Ganesh Deuskar during the freedom struggle, consider the follow-ing statements: (2020)

    (1) It warned against the Colonial State’s hypnotic conquest of the mind. 

    (2) It inspired the performance of swadeshi street plays and folk songs. 

    (3) The use of ‘desh’ by Deuskar was in the specific context of the region of Bengal. 

    Which of the statements given above are correct? 

    (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

  • How the Mahad satyagraha(s) shaped constitutional discourse

    Introduction

    The Mahad Satyagrahas of 1927, Mahad 1.0 and Mahad 2.0, marked India’s earliest organised struggle for human rights, equality, and dignity of Dalits, led by Dr. B. R. Ambedkar. These movements challenged caste-based exclusion from public resources like water tanks and dining spaces and laid the philosophical foundation for India’s constitutional values. The events in Mahad also highlighted rising violence against Dalits, the colonial state’s limited reform measures, and Ambedkar’s shift from seeking reform within Hinduism to questioning its social foundations.

    Why in the news

    The Mahad Satyagrahas are back in focus because historians highlight them as India’s first organised human rights movement which directly shaped the ethics and structure of the Indian Constitution. The renewed scholarly work underscores how Ambedkar’s fight against caste-based exclusion at Mahad transformed into a broader constitutional philosophy of liberty, equality, and fraternity, marking a sharp departure from existing social norms where Dalits were excluded even from public water. It is significant as it reveals how one protest reshaped India’s democratic imagination.

    How did the pre-independence socio-political context shape the Mahad Satyagrahas?

    1. Pre-independence Bombay Presidency: Provided an industrialising environment where caste norms remained deeply entrenched despite economic modernisation.
    2. High-caste hostility: Untouchables denied access to tanks, wells, and basic public facilities, reflecting the rigidity of caste-based exclusion.
    3. Local leadership & social climate: Figures like Ayyankali, Wankhedkar, and shudra leaders supported Ambedkar’s reformist agenda.
    4. Mahad as chosen site: The Bombay Legislative Council’s 1923 resolution allowed untouchables to access public water, making Mahad a test site for enforcing equality.

    What actions defined Mahad Satyagraha 1.0?

    1. Assertion of equal civic rights: Dr. Ambedkar and his amuyyis drank water from the Chavdar tank in March 1927 to enforce legal rights under the 1923 resolution.
    2. High-caste backlash: Brahmins and caste Hindus resisted the act, arguing untouchables polluted the tank.
    3. Boycott and economic pressure: Mahars faced food and water refusal by caste Hindus.
    4. Stoning of Mahar properties: Led by local caste groups which escalated communal tensions.
    5. Ambedkar’s restraint: Called off the satyagraha until judicial clarity was obtained on tank access.

    Why did the Manusmriti burning at Mahad become a turning point?

    1. Rejection of caste-based scriptures: Dr. Ambedkar publicly burned the Manusmriti at the second conference on 25 December 1927.
    2. Shift from reform to structural critique: Burning represented a rejection of Brahmanical authority that legitimised caste hierarchy.
    3. Link to human rights discourse: Marked one of India’s earliest acts connecting scriptures with civil rights violations.
    4. Symbolic rupture: Demonstrated departure from earlier Hindu attempts to “purify” spaces instead of granting equality.

    How did Mahad Satyagraha 2.0 deepen the movement?

    1. Focus on dignity and self-respect: Ambedkar emphasised gender equality, social inclusion, and recognition of women as Shudras.
    2. Reference to French National Assembly (1789): Liberty, equality, and fraternity reinterpreted for Indian caste society.
    3. Shift from morality to constitutionalism: Ambedkar linked personal freedom with civic rights for all castes and genders.
    4. Critique of Hindu scriptures: Questioned how religious norms prevented equality and modern citizenship.

    Why is Mahad important for India’s constitutional discourse?

    1. Equality as foundational value: Mahad linked civic resources to basic human rights, influencing Articles 14-17.
    2. Fraternity as political principle: Derived from Mahad 2.0’s integration of dignity, gender equality, and democratic citizenship.
    3. Rejection of essentialism: Ambedkar believed nationality required shared values, not inherited caste or religion.
    4. Manuski as alternative ethic: A moral basis for constitutional democracy founded on human dignity and justice.

    Conclusion

    The Mahad Satyagrahas stand as a historic bridge between social protest and constitutional philosophy. They brought ideas of liberty, equality, dignity, and fraternity into India’s political vocabulary long before independence. Dr. Ambedkar transformed a local struggle over water into a national articulation of human rights, ultimately shaping the moral and legal architecture of the Indian Constitution.

     

    Major Movements & Events Ambedkar Led Before Independence

    Mahad Satyagrahas (1927)

    1. First organised struggle for civil rights, water access, dignity, and equality.
    2. Burning of Manusmriti signified rejection of caste-based moral order.

    Temple Entry Movements (Kalaram Temple Satyagraha, 1930-35)

    1. One of the largest mass mobilisations for religious equality.
    2. Demonstrated civil disobedience independent of Gandhian movements.

    Communal Award & Poona Pact (1932)

    1. Initially supported separate electorates to ensure political empowerment of Dalits.
    2. Forced into Poona Pact compromise after Gandhi’s fast, leading to Reserved Seats instead.
    3. Laid foundation for the modern system of political reservation.

    Formation of Political Parties

    1. Independent Labour Party (ILP), 1936: Focused on labour rights and anti-caste politics.
    2. Scheduled Castes Federation (1942): Advocated parliamentary democracy, representation, and civil liberties.
    3. Republican Party of India (posthumously established, conceptualised by Ambedkar).

    Labour and Economic Reforms (as Viceroy’s Council Member, 1942-46)

    1. Introduced 8-hour working day, equal pay, maternity benefits, worker welfare funds.
    2. Advocated for industrialisation and planned economy to uplift marginalised groups.

    PYQ Relevance

    [UPSC 2015] Mahatma Gandhi and Dr. B R Ambedkar, despite having divergent approaches and strategies, had a common goal of amelioration of the downtrodden. Elucidate.

    Linkage: This question is relevant to GS-1 as it compares Gandhi’s reformist approach with Ambedkar’s constitutional and rights-based strategy for uplifting the oppressed. It helps assess how their differing methods ultimately converged toward the shared objective of social justice and Dalit empowerment.

  • Bitra Island

    Why in the News?

    The Chief of Staff, Southern Naval Command, announced that the Indian Navy is setting up a detachment on Bitra Island, and the facility is almost completed. This will make Bitra the third island in Lakshadweep to host a defence establishment.

    About Bitra Island

    • Location: Northern Lakshadweep, Arabian Sea
    • Smallest inhabited island in Lakshadweep
    • Land area: 0.105 sq. km
    • Dimensions: Length – 0.57 km | Width – 0.28 km
    • Lagoon area: 45.61 sq. km (significantly larger than the landmass)
    • Population (2011): 271

    Key Features

    • Cultural Significance: Hosts a shrine of Malik Mulla, an Arab saint believed to be buried there.
      • Important pilgrimage site for locals across Lakshadweep.
    • Ecology: Once covered with thick shrubs.
      • Historically a major breeding ground for seabirds, which declined in the 19th century due to human interference.
    • Climate: Similar to Kerala’s climate.
    • Hottest months: March–May
    • Temperature: 25°C – 35°C
    • Humidity: 70–76% throughout most of the year.

    Strategic Importance

    • Located in a key position in the Arabian Sea, critical for maritime security.
    • Enhances surveillance over sea lanes close to India’s western maritime frontier.
    • Adds to Lakshadweep’s defence infrastructure:
      • INS Dweeprakshak – Kavaratti
      • INS Jatayu – Minicoy
      • New Navy detachment – Bitra Island

    Prelims Pointers

    • Bitra = smallest inhabited island of Lakshadweep
    • Features a shrine of Malik Mulla
    • Large lagoon-to-land ratio
    • Strategically vital for India’s naval presence in the Arabian Sea
    • Climate closely resembles Kerala
    Which one of the following pairs of islands is separated from each other by the ‘Ten Degree Channel’? (2014)

    (a) Andaman and Nicobar 

    (b) Nicobar and Sumatra 

    (c) Maldives and Lakshadweep 

    (d) Sumatra and Java