One Perspective: You may obtain acknowledgment of notice of resignation, tender final resignation on LWD, under proper acknowledgment.
If you (employee) have tendered notice of resignation then you have displayed good character and given desired time to employer/ attorney’s of employer to put it’s house in order and arrange for complete/clean exit formalities and pay all dues and relieving docs on LWD.
You may write to good offices of employer i.e. appointing authority, MD/CEO under proper acknowledgment to supply on LWD the, acknowledgment and acceptance of notice of resignation, final resignation, correct FnF statement (showing computation of earned wages/Bonus/incentives/leave encashment/OT/reimbursements/Gratuity etc etc), payment of dues as per correct FnF statement, Form16 as per FnF statement, service certificate, relieving letter (with good comments on integrity/character/performance) , acknowledgment of handover of charge/assets (if any), NOC/NDC,PF number and a/c slips of each year, ESIC card, salary slips of all months, appraisals of all years etc etc
You may mention that NO tasks are pending at your end and to whom you should handover the charge/assets if any and highlight your achievements, commendations, awards/rewards, appreciations, performance etc etc and in a veiled/gentle/amiable tone that never ever any stinker/memo/SCN has been issued to you…………
Ensure that you get good comments in BGV ( initiated by next employer) and BGV is completed immediately and try to get a copy of it…………
After getting clean BGVwith good comments (say within 21 days from LWD) submit FormI ( within 30 days from LWD) and mention that ‘Notice of Determination of Gratuity’ and payment of Gratuity has not been supplied to you despite the representations in office/in person/by emails/by phone calls etc etc (as in your case)
Try to resolve with your own skills of persuasion, persistence, reasoning, negotiations…………
If required involve employee’s/trade unions/Grievance Redressal Committee/Works Committee, Inspector appointed under the Act, a very able local senior counsel of unshakable repute and integrity specializing in Labor/service matters………………..