BJP's win in West Bengal was predicted by four exit polls, namely Praja Poll, Poll Diary, Matrize and P-Marq, while TMC's win was predicted by People's Pulse. DMK could return to power in Tamil Nadu, claimed Matrize, People's Pulse and P-Marq. Congress-led UDF has edge in Kerala, said VoteVibe, Matrize and P-Marq. BJP might sweep Assam, said three exit polls.