Dear Rinkesh,
But as per deposit rules following is the exempted deposit:
Any amount raised by the issue of bonds or debentures secured by a first charge or a charge ranking pari passu with the first charge on any assets referred to in Schedule III of the Act excluding intangible assets of the company or bonds or debentures compulsorily convertible into shares of the company within five years.
So, if the debentures are optionally convertible, it will be treated as deposits. I feel under Section 71 only secured OCDs can be issued.
Procedure:
1. You have to follow Section 71 and 62 or 42 as the case may be.
2. Filing of MGT-14, PAS-3 and creation of charge