THINK with a cool mind... my dear friend.
I think i Have a solution.
for DT do Amendtments by heart and case studies (amendments)
do Assessment procedures thoruoghly and have good practical working knowledge about corporate assessee. do not ignore small topics ( VVimp). Institute always tends to focus on small topics from past few attempts.
For ISCA i think i cant help much.. coz i got only 47. but practice manual is what i focused but i was able to attempt the paper satisfactorily to pass with nominal marks...
Good luck be cool and u will clear.
coz when we are cool we tend to perform better..
i studied 2nd group for 25 days and i cleared and despite of giving 1 and half month for 1st group i didnt coz i got frustated n hyper..
so u get the moral of the story...