Bcom from ignou

Hello members and experts.

I've query about bcom from ignou as per the tie up with ICAI.

I've cleared my IPCC group 1 in May 2017, and had given exam of group 2 in Nov 2017 .

I want to pursue BCOM(a&f) from IGNOU,

I have confusion regarding the duration ( 1 year or 3 years).

Also, what is the session of academy? When I have to register.?

Plz reply.