Non audit services

u can get the details of all these services in professional ethicsthere are many services which a auditor can provide to the company in which he is auditor

one service from them is book keeping

as if a CA provides the services of book keeping to the company then he can't accept the audit of that company.

can u attache the same file

A CA has to follow behave ethicaly for to avoid the guilty of Professional misconduct

as the same are explained in attached file in link

https://www.icai.org/resource_file/19379sm_aape_finalnew_cp23.pdf