Doubt regarding it

I have started preparation of both group for may 2015 attempt and the preparation is well till now.I am confused regarding IT paper since ca institute doesnt gives full marks on answers given our own language and the practice manual language is too technical I can learn max 7-8 technical chapters in 2-3 hours thats too much time consuming and there are many chapters to learn.

SO anyone who has cleared IPCC please advise me what exactly should I do?