Company Registration/actories Act or Shops & Establishment Act?

We are newly started company, doing Robot Service, Repairing ,overhauling & Maintenance work to other companies like hyundai. Company set up is functioning under Rental warehouse covering 600 sq.ft. Major Equipmnents are Small Crane(Wt 1 ton), Compressor, DG and other tools for repairing. In which act, should I (Tamilandu Shops & Establishment Act or Factories Act)register?. Please assist me,..

Repairing ,overhauling & Maintenance work in your area is an engineering job in my opinion.
As per Factories Act " Factory is defined in Section 2(m) of the Act. It means any premises including the precincts thereof-
Whereon ten or more workers are working, or were working on any day of the preceding twelve months, and in any part of which a manufacturing process is being carried on with the aid of power, or is ordinarily so carried on; or
Whereon twenty or more workers are working, or were working on any day of the preceding twelvemonths, and in any part of which a manufacturing process is being carried on without the aid of power, or is ordinarily so carried on.
An important necessity for any premises to be regarded as a ‘factory’ is, that a “manufacturing process” should be conducted within the premises. According to section 2(k) defines manufacturing process as:- “Manufacturing process” means process for –(i) Making, altering, repairing, oiling, washing, cleaning, ornamenting, finishing, packing, breaking up, or otherwise treating or adapting any article or substance with a view to its use, sale transport, delivery or disposal.

You require to take a licence under factories as per described work if number of workmen is above ten.
In the matter Mr Babu Alexander has described the factories act quite well to understand. Hope the above will calrify your doubts over matter.