- Merger of 5 national parties.
- Congress(O)
- Jan Sangh
- Bharatiya Lok Dal
- Socialist Party
- Swatantra Party
Other parties like the Congress for Democracy (led by Jagjivan Ram and Hemvati Nandan Bahuguna).
- 1980 to 1988 – very few Parliament seats – led by Chandra Shekhar.
- 1988 – Janata Party + Jan Morcha + Lok Dal(B) + Congress(S) = Janata Dal.
- 2013 – August – original Janata Party was merged with BJP.