Rebel Trinamool leader Ritabrata Banerjee says the grassroots party created by Mamata Banerjee has been hijacked by Abhishek Banerjee and corporate brokers; he rejects allegations that the BJP engineered the split, and reiterates that his faction will remain anti-BJP; he also hints at a possible rebellion among Trinamool MPs, saying ‘courage is contagious, it will travel from Kolkata to Delhi too’