I worked as a permanent employee in a public sector bank. As per the terms of appointment, I served a 3-month notice period. On the last day of the notice period, I received a letter from the controlling office stating that the competent authority has accepted my resignation from the bank's service with effect from 16/09/2017 at the close of business. When I asked for a relieving letter, they mentioned that the letter received is sufficient. I am unsure if this will be adequate for further employment in government sector jobs or if I require a proper relieving certificate. What options do I have to obtain the relieving letter from my previous employer?