Dear Jeno,
As per Section 35 of the Bombay Shops & Establishment Act:
Every employee who has been employed for not less than three months in any year shall, for every 60 days on which he has worked during the year, be allowed leave, consecutive or otherwise, for a period of not more than five days.
Every employee who has worked for not less than two hundred and forty days during a year, irrespective of the date of commencement of his service, shall be allowed leave, consecutive or otherwise, for a period of not less than twenty-one days. Provided that such leave may be accumulated up to a maximum period of forty-two days.
So, kindly prepare your leave policy accordingly.