Rules regarding appointment of Company Secretary

For appointment of whole time secretary the turnover of the company should be not less than 250 crores rupees and paid up capital should be 10 crores rupees

If company has paid up capital of equal to or more than INR 10 Crore ,it has whole time company secretary ,he will be appointed as per provision in 203 and also been considered as KMP, process is as follows
a) Offer Letter
b) Acceptance of Offer Letter
c) Board Meeting
d) Board Approval
e)Filing MGT-14
f) Filing DIR -12 + DIR -2 + Employment contract (if any )
g) associate DSC of secretary at MCA portal

Also if listed company then have to give stock exchange intimation within 24 hours of approval of the Board

Yes ,Secretary Is Designated Person as per SEBI (PIT) Regulation so Form B also required for initial disclosure ( Listed company )