As Mr. Ram said, depending on the company policy, leave encashment is calculated. In your company, the policy is available. So, according to your policy, leave encashment has been calculated based on Basic X No. of Leaves / 26 days that we need to consider.
Still, if you have any doubts, please refer to Section 10(10AA) as per the Income Tax Act, 1961.
If you have any queries, please call me.
Regards,
Suresh VVN
Payroll Manager - [Phone Number Removed For Privacy Reasons]