Provided that nothing in this section shall affect the power of any authority under a Central Act to conduct inspections as may be authorised by such Central Act.

Effect of Acknowledgement Certificate An Acknowledgement Certificate issued pursuant to section 7 shall be deemed for all purposes to be an approval under clause (b) of section 2, and shall remain in force for a period of 3 (three) years from the date of its issuance and after the expiry of the said period of 3 (three) years, the enterprise shall have to obtain required approval under relevant laws within six months from the date of expiry: