TMC supremo Mamata Banerjee on Friday formed a new officer bearers’ committee, reappointing her nephew Abhishek Banerjee as the party’s national general secretary and veteran leader Yashwant Sinha as its vice-president. Senior TMC leaders Subrata Bakshi and Chandrima Bhattacharya, too, have also been given the post of the party’s national vice-presidents. Among others, TMC minister Aroop Biswas has been made the treasurer, and Kolkata mayor Firhad Hakim in-charge of coordination.