Very useful and most awaited post of yours. I agree with all your tips and I too believe that it is a bit tricky subject but not an impossible one to deal with.
THANKS FOR SHARING......... ACTUALLY I NEEDED HELP IN THIS SUBJECT ONLY. I COULDNT CLEAR IPCC GROUP 1 BECAUSE OF THIS COSTING FM . I WAS IN NEED OF 11 MARKS & THE WHOLE GROUP WOULD HAVE BEEN CLEARED. BUT NOW THIS TIME WILL STUDY HARD & CLEAR IT. NOW ONLY 3 SUBJECTS TO STUDY AS I GOT EXEMPTION IN TAX.