The Factories Act lays down requisites in the following mainly-
Cool Drinking water - good sanitation arrangements - Spittoons at convenient places-
Canteen Arrangement- canteen Committee- Safety Committee- Rest Rooms/Lunch Rooms
First Aid Boxes-Ambulance Room-Medical officer/Medical Staff/Ambulance van-Welfare Officer-
Safety Officer(for 1000 workmen)-Creche-Separate Washing Facilities (for Men/women).
For your convenience, I am attaching the Factories Act, 1948.
From India , Delhi
You do not need to seek any permission under the Factories Act for employing 500 people. There is one aspect to this, if your increase in demand is temporary, you need to plan and strategise accordingly. Because after the demand is met and if there are no continuous orders, these additional 250 people will not be utilized fully. Therefore you can think of outsourcing the work if demand is temporary, if it is permanent you can engage these people. There is no procedure involved under Factories Act, except those welfare provisions which already somebody has posted above, it has to be followed and Welfare Officer is to be appointed.
From India , Pune
I think you having permission for 250 people in the CLRA Act, You can enhance the people strength to 500 People through Dy/Addl Labour Commissioner under the CLRA Act by applying in the prescribed forms and prescribed fees too. For regular employees no permission as such is needed. it is only for contractual employees.
Adv Raj Singh Phogat
From India, Delhi