PLEASE ASSIST FOR IPCC

Hey , this time i am going to make an attempt for  ipcc in november ., as i just cleared cpt in dec attempt , i have no idea about ipcc , i know the subjects to study and also registered but i am unaware of authors to be referred to buy the books  for the both groups , so at the same time is coaching necessary as i did not attended any coaching for cpt  so please guide me ,also if any body have soft copy related to any of the subjects of ipcc please upload to student portal or upload as a reply ................................HEAPS OF THANKS IN ADVANCE ....................................