Dear friend,
For full and final settlement, first, you have to demand the management to release your pending salary and expense reimbursement through a registered letter. After 15 days, you have to send a legal notice to the management stating that if they do not release the pending amount, you may file a computation claim petition before the Labour Court under Section 33C(2) of the Industrial Disputes Act, 1947. Definitely, they will release your full and final settlement.
Rajasekarankalyani