Union Home Minister Amit Shah on Wednesday accused West Bengal Chief Minister Mamata Banerjee of compromising national security for the sake of vote-bank politics, and “committing a sin” by allowing infiltrators to change the state’s demography.

Addressing a poll rally at Kanthi in East Midnapore district, Shah also asserted that the Trinamool Congress will “disintegrate”, resulting in the “farewell” of the Mamata Banerjee government after the BJP wins 30 Lok Sabha seats in the state.

“Bengal has become a safe haven for infiltrators. Due to infiltration, the demography of the state is changing, which is impacting not only Bengal but the entire country.