How to change the signatories of a apartment in the bank?

Hello, I live in an apartment of only 8 flats. The builder handover all the flats to the owners in 2012. By the election, we elected president, secretary, and treasurer. Since then the body remains the same. Now the president is giving trouble to all 7 flat owners. He is not following any decision taken in the society meeting. In the last meeting, all members had decided to change the social body and signed the meeting society proceedings. But the president is refusing to sign. He is not following any society's rules. He is paying his maintenance by cash. He lost the rubber stamps and the passbook. He only promises to do the social accounting and audit but didn't contact anyone. Now, society lift AMC is not done in last 2 years. The water pipeline and bore water motor need maintenance. The secretory is living in the USA and can't contribute to any decision. The president is not signing any cheque in the smooth running of the society. The bank needs his signature to appoint a new body of signatories. He is all ready to face any legal action against him. I request you to kindly help me in this matter. Can we 7 owners go to the court to change the signatories in a bank account?