Several requirements may apply together
The project may need to consider the National Building Code, relevant Indian Standards, applicable TAC requirements, local fire-authority conditions, specifications and manufacturer instructions.
The building changes the requirement
Occupancy, height, area, hazard, storage, evacuation and existing systems affect which provisions are relevant.
Approval is not a website claim
Design information, site execution, tests and submissions must follow the actual project and authority process; universal compliance should never be assumed.