bank loan time to pay interest

Sir, I have cc loan of 20 lakh in axis bank from 2013 for which I have to pay interest only every year about 12.5% on every March and. Due to business loss, I have paid partial interest only. Now persons from bank are coming to my house twice a week intimidating me to pay interest. Five days ago , I gave petition in legal aid to help me in converting the cc to emi through a lawyer. But again , bank people came to my house and said that i) either I have to pay interest within 1 day ii) or I have to come to bank declaring in writing that I am unable to pay interest that I am willing to submit to whatever steps bank is going to take. They said if don't do any of the above, they will keep the board on my house next day. They also said they don't care about the legal aid (சமரச மையம்).is it possible for the bank to take action like this in this situation. Can u clarify me about my options sir?