Dear Colleague, The nature of the casting yard and the definition of "Manufacturing Process" under The Factories Act 1948 are the key deciding factors. If you employ 20 or more workers without the aid of power or 10 or more workers with the aid of power and you are involved in "Manufacturing," then YES, you are a factory.
A casting yard is a place where concrete components like segments and boundary wall panels are cast, shifted to their stack yard, cured for a specific period, and then shifted to the working site after they gain their required strength. This covers some or other parts of the definition of a manufacturing process as per the Factories Act. In the Factories Act, 1948, section 2(k) defines a manufacturing process as: "Manufacturing process" means a process for 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.
Hence, it is suggested to have a discussion with the Directorate of Industrial Safety and Health of your location to get more clarity, then apply for the necessary licenses, approvals, or compliance as may be required.