Dear Shalini Menon,
I am surprised at your query. Such doubts, which are not of a very technical nature but can be solved by common sense, should not arise in the mind of a good HR professional.
Termination vs. Full and Final Payments
Termination (on whatsoever grounds) is one thing, and Full and Final payments are entirely another. Do you mean to ask whether the company can unlawfully usurp the earnings of the ex-employee? If this were considered legal, would not every company go around terminating its employees as they reach their retirement age? Kindly find out what EL stands for, its expanded form, and meaning, which should give you a clue to the answer.
Some members may feel that it is to confirm their doubts, but such minor matters should not create doubts if a person has a sense of the principle of natural justice and fairness.
The best remedy or test is to think of oneself as the one on which this action is proposed to be taken. It will immediately indicate whether the proposed action is fair or unfair/illegal.
Warm regards.