The appointment of Mukul Roy as the chairman of the Public Accounts Committee (PAC) of the West Bengal Legislative Assembly has been challenged before the Calcutta High Court, given his shift of allegiance to the All India Trinamool Congress Party (AITC) after he won the elections on a Bharatiya Janata Party (BJP) ticket in May 2021 (Ambika Roy v. Hon’ble Speaker, West Bengal Legislative Assembly and ors.).