kolkata ca students pls help

i will give ipcc both groups in may 2011.  have taken admission for accounts , cost and fm in sudarshan sir's, and alok sir's classes. however there is no batch now in vivek sir's classes. can i get very good marks by doing  tax alone or there is any other teacher under whome i can take admission. if so, please share his name and contact details. waiting for your replies.