RBI has issued guidelines and accordingly banks have prepared and posted their compensation policy on their websites.
You may first lodge written complaint with BM of the bank under proper acknowledgment and demand to supply reply by redg/speed post only say within next 7 days, and then escalate to RM/CGM/AGM etc or even Nodal officer/Chairman of the bank. If the BM and bank fails to supply reply and award compensation you have the option of approaching BO ( if it accepts such complaint), DCDRF, Civil Court etc.
You may demand loss of interest on your hard earned monies, and to pay you interest on deducted amount which you shall be able to get after say 1.5 years, cost of visiting the bank (travelling, aprking etc), phone calls, typing charges, cyber cafe-internet charges etc and round off the amount to as deemed fit by you, mental tension, harassment etc.Let the bank offer you an amount as per their policy.