Contact Reserve Bank of India [RBI ] directly at +91 222 260 1500 or [email protected]. Get customer support, file a complaint , and resolve your issue fast. NBFCsBack to previous page RBI has a customer care service for general enquiry to report fraud or unauthorised transactions. Here are the details of RBI helpline number to email id. The Reserve Bank of India provides a platform for lodging complaints related to banking and financial services.