Earned leave lapse

Is this even legal?

The right to leave encashment is like the right to property, earned by an employee, and leave encashment cannot be denied even to an employee dismissed from service “The leave encashment is a right of an employee not only under the statute, even under the fountainhead of all statutes — the Constitution of India,” the court said

Earned leaves are lapsed without encashment from c4 grade onwards...