Hi Lalitha J,
Just go through the clause from the factories rules:
No manufacturing process shall be carried out in any building or part of a building, whether newly constructed, reconstructed, or extended, or in any building that has been taken into use as a factory or part of a factory, until a certificate of stability in respect thereof, in Form "___" signed by a competent person, has been submitted by the occupier or manager of the factory to the Chief Inspector and accepted by him. Additionally, no new plant or machinery shall be added to any building of a factory or brought into use after such addition until a certificate of stability in Form "____" signed by a competent person, in respect thereof, has been submitted by the occupier or manager of the factory to the Chief Inspector and accepted by him.
So, you must obtain the stability certificate before commencing the manufacturing process.