Book for ipcc taxation..!!

Hi i need help in deciding which book is best for Ipcc Taxation..!!

This is my 2nd attempt for Ipcc in May 2013..!!

I scored 190 in the First Group In November nd Had Failed in Aggregate So i dont wana Take any Chances..!!

I had used Singhania in November Attempt and it is a Good Book..

But my Friends Tell me T N Manoharan is Way better than Singhania..Please Help..!!