One more BJP MLA returned to the Trinamul Congress on Tuesday with the defection of Biswajit Das, who represents the Bagda Assembly segment in North 24-Parganas.

On Monday, Bishnupur MLA Tanmoy Ghosh had rejoined Trinamul. Both Das and Ghosh had been with Trinamul and joined the BJP before the Assembly polls.

“Mamata Banerjee and Abhishek Banerjee are leading the party impressively.... Because of some misunderstanding, a few things took place in between. But now, I am back at home,” Das said on Tuesday.

There are murmurs that at least seven more BJP MLAs, including three from north Bengal, are likely to switch their allegiance soon.

Asked if the party would take action against the defectors, state BJP chief Dilip Ghosh said: “These people didn’t hold any post in our party.…What action can we take against people who have left us...”

Suvendu Adhikari, leader of the Opposition, sent letters to Ghosh and Das giving them a week’s time to clear their stand on political affiliation.