Modern History › Non-Congress Parties/Organizations

Consider the following pairs:
Party : Its Leader
1. Bharatiya Jana Sangh : Dr. Shyama Prasad Mukherjee
2. Socialist Party : C. Rajagopalachari
3. Congress for Democracy : Jagjivan Ram
4. Swatantra Party : Acharya Narendra Dev
How many of the above are correctly matched?