Formulate Leave Policy - Which Act will be applicable for policy rules?

Hi Folks, I have to prepare a leave policy for my company. We are basically into pathology business and the head office is based at Ahmedabad. I want to confirm following:
Which Act will be applicable for policy rules?
How to go about giving leaves to employees working at different regions, i.e. Delhi
Can we introduce something where we can promote leave encashment on month on month basis? Reason is, since its a pathology industry we need people in the work place 24/7 since it has a direct impact on our business.
Kindly help
Regards
Unnati

As your business is a kind of shop/commercial establishment, you have to follow Gujarat Shops and Establishment Rules for leave rules.
The Gujarat Shops and Establishment Act 1948 earlier called the Bombay Shops and Establishment Act 1948.
Earned Leave/Privilege Leave and Maternity Leaves are referred in the rules. However no mention on Casual Leave and Sick Leave. As ESI is applicable, Sick Leave could be availed under ESI leave
If you have a branch in Delhi, as per rules, you have to get registered under Delhi Shops & Establishments Act 1954 and the leave rules shall comply with.
Leave encashment is a matter of company policy and it is up to you to decide whether encashment can be done on a monthly basis or annual. While considering the 24x7 people allocation as the first priority, make the process also simple and manageable.