News Nation's exit poll predicts a gain of almost 10-12 seats for the BJP in West Bengal. TMC's tally is likely to go down to 26-28 while Congress would register its presence with 2-4 seats in the state. Left is either expected to be wiped out or might fight for existence with just 2 seats in the tally. With 30 percent of vote share, BJP emerges as the primary opponent of TMC in the state.