You may use a CP-8832 either with daisy chain connectivity or by using wireless microphones:
The Link shows for Long Rectangle table, in U Shape it has three Rectangle shape, how does the two CP 8332 can cover.
Do Wireless Microphone allowed to use in India?
Depends on how wide is your Conference Room is, from my experience even one device can cover Wide Rooms
(official specs are given on the deployment guide).
Concerning the wireless part you may need to contact your Cisco Local Partner for availablity