Defaulter in cgtmse loan - unsecured loan

Dear sir, This is regards with the defaulter in loan. Sir me and my partner had started business of making packaging boxes for that matter we have taken the 15 lakh unsecured loan under CGTMSE SCHEME. but at the year of 2016 I quit this partnership and while doing this our CA has made addition and retirement deed in which I taken the retirement and my partner continue the business with new partner along with a clause of carrying all the liability of the business. But now after few months I am receiving threatening calls from bank manager that your partner had stopped paying the emi and your are also responsible for this loan repayment. I had told bank manager that sir I retired from this company and on going partners running this business but manger told me we do not consider what your CA did and your signature is there on loan paper. My partner also submitted our retirement deed and other documents to bank but bank manager not agree to accept my retirement. Me and my partner we're mutual agreed and separated with out any dispute. Even he wanted to continue business but from changing from partnership firm to propiertorship process was very time consuming and required money and such in case it's very difficult to change the form of business in on going business model. So he had added his father as a new partner. we have legally followed everything and now I am facing this issue. Infact bank told me we will not allow you to release this partnership. I am totally confused and right now I am doing my job and such threatening call disturb my mind totally. I am married person and I have to look after my family and my retired dad and my mother. Sir please help please.