Selective Delay in case of government recruitment

Hello Legal Experts, I need an opinion on following matter : I was selected for the post of teacher in a Navodaya Vidyalaya Samiti (which is a central government school system like KVS ). NVS gave joining to candidates two months ago but I am still not provided joining. My marks are among top scorers , so it can not be a case of waiting list. I contacted NVS through RTI and received response that my candidature is pending for decision. But cause of delay was not provided citing that Information Officer is not liable to provide reasons. I have raised a grievance through public grievance portal which is pending at the end of NVS (by same official who responded to RTI) Now, they have started hiring candidates on contractual basis. The recruitment process already took a lot longer time due to pandemic. My queries are : 1. What is the cheapest and fastest way I can get my joining letter ? 2. Can I get compensation ?