I am working in DIPP as a group A officer. I had joined in DIPP on 16/07/2016. The probation time as mentioned in the joining letter was 2 years. Although two years have already passed, still I have not got the confirmation of my probation completion. Recently I have been selected as an assistant professor in UPHESC, therefore, I want to resign from my current post. In resignation letter whether, I must ask for the lien or just for the technical resignation?