| List-I | List-II | ||
| (A) | S.A. Dange | (I) | Bharatiya Jan Sangh |
| (B) | Shyama Prasad Mukherjee | (II) | Swatantra Party |
| (C) | Minoo Masani | (III) | Praja Socialist Part |
| (D) | Ashok Mehta | (IV) | Communist Party of India |
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)