New Delhi, June 11 -- With several lawmakers leaving the Trinamool Congress, the party is facing an existential crisis. Lok Sabha MP Mahua Moitra insists that it is a good purification, and all rumours of the TMC dying is just the Bharatiya Janata Party (BJP)'s wishful thinking. She spoke to HT soon after news came of her colleague Sushmita Dev resigning. Edited excerpts: People are free. It's a free country. She was in the Congress. She left the Congress and came to us. We gave her a Rajya Sabha (seat), not once, but twice. And for whatever reason... she'll have to answer to that, as to why she's gone. They have 16, they have been claiming that they have 20. If they really had 20, I'm sure there would have been a letter out, there would ha...