Hi Deepak,
If you have obtained CLRA, then you need to maintain the documents under CLRA. If you are a principal employer, you need to maintain form XII (Register of contractors), Notice of commencement (Form VI B). If you are a vendor (Contractor) you need to maintain Notice of commencement (Form VI A), Registers of workers (form XIII), Register of wages (Form T), Wage slip etc
Please call me for any assistance if required.
Best Regards
Praveen Bhosale
praveenbhosale1(AT)gmail(DOT)com
9845529738