After DMK president MK Stalin proposed Congress chief Rahul Gandhi's name as the prime ministerial candidate of the united opposition, West Bengal Chief Minister Mamata Banerjee said that whatever the "political parties (refering to united Opposition) decide, will be the answer".

Notably, Opposition parties like Congress, BSP, SP, TMC and DMK have planned to form a Mahagathbandhan or Grand Alliance to take on Prime Minister Narendra Modi government in 2019 general elections.