For the purpose of deduction of income tax payment of gratuity is divided into three
(1) Gratuity payale to Govt. employees ( as per Govt. Rules in this regard)
(2) Gratuity payable to employees under Payment of Gratuity Act 1972
Exemption is least of the following
(a) 15 days salary based on the salary last drawn for each year of service
( 15 days salary x Length of service) Service more than 6 months taken as one year
15 days salary is calculated as last drawn monthly salary divided by 26
(b) 10 Lakhs
(c) Actual amount received
(3) Gratuity payable to employees who are not covered under Payment of Gratuity Act 1972
(a) Half months average salary for each completed year of service.
(Average monthly salary is calculated on the basis of average salary for the 10 months immediately preceeding the month in which employee has retired. For calculation of length of service, any fraction of the year will be ignored.
(b) Rs 10 lakhs
(c) Actual amount received.
For details refer Section 10(10) (ii) and (iii) of Income Tax Act 1961