Ideally full and final settlement is to be made on the last day of work yet most of the companies in India take around 30--45 days to complete the same. You may write (official email/ postal service) to the management and request them to release the FnF at the earliest.
I am writing this letter to state that on _ (Day) i.e. (Date), I got relieved from your _ (Company/ Organization) but my full and final settlement has not been done. I request you to kindly do the full and final settlement and send me all dues (if any).
Settlement is simply quicker, easier, and cheaper than going through a trial. One of the first steps in settling a case is to write and send a settlement demand letter to the party responsible for paying your claim—typically, an insurance company. You need to draft your demand letter with care.
I am writing this letter to state that on _ (Day) i.e. (Date), I got relieved from your _ (Company/ Organization) but my full and final settlement has not been done. I request you to kindly do the full and final settlement and send me all dues (if any).
I am writing to request a full and final settlement of my payroll. As you know, I have recently resigned from my position at the company. I formally request that you process all outstanding payments owed as soon as possible. This includes any unpaid salary or benefits due to me until my last working day.
I hereby acknowledge full settlement and satisfaction of all the aforesaid claims and fully understand that I can make no further claim or demand against the aforesaid, even though my damages and injuries are found to be more serious than or different from what I know them to be or to exist at this time.
Treat the following as a set of general guidelines: Gather complete information before you start writing. Describe your injuries and medical treatment. List your medical expenses, lost wages, and non-economic damages. Make a settlement demand. Include a deadline for legal action if you want to, but don't bluff.