I presume you are manufacturing tiles, marbles, and sanitary wares! As you have a staff strength of more than 20 persons, you need to cover your establishment under the ESI Act and EPF & MP Act and ensure all eligible staff are covered under these statutes. All other relevant licenses, permits, and approvals from the Factory Inspector, Labour Inspector, Pollution Control Board, Geology Department (if applicable), and Panchayat/Municipality/Corporation (as the case may be) must be obtained. Set up a good HR department.