Rukumar (No) 23 June 2014
Kumar Doab (FIN) 23 June 2014
Refer Payment of Gratuity Act 1972: Sec1,2,2A,7,9
Even teachers are eligible for payment of gratuity with retrospective effect from 1997.
Submit Notice of resignation addressed to appointing authority, under proper acknowledgment preferably by Redg.Post. Mention NO tasks are pending at your end. Handover charge under proper acknowledgment. Build written record in your favor so that employer is not able to level any charge.
Employee can submit FormI (of course under proper acknowledgment) one month before date of retirement (by resignation in your case) so that employer may tender payment of gratuity along with FnF settlement on last day in office.
Even if NO application is made by employee employer has to tender payment within 30 days or shall have to pay interest for the delayed period@10%pa.
There is even provision for penalty, punishment with imprisonment in Sec9
There are many threads on Gratuity at:
https://www.lawyersclubindia.com/forum/display.asp?cat_id=9&forum_id=49#.U6fTRpSSwb8
that you may find relevant.