Certificate of commencement in CA1956

Piyush Garg (Company Secretary on wholetime employment)   (95 Points)

03 October 2018  
I've revived one Ltd company from cods for which I'm unable to find certificate of commencement of business. this company was converted in 1992 from Pvt Ltd to public Ltd

so please tell will certificate of commencement rules applicable to this public co as per section 149 of CA 1956