Hi..
Try solving questions from any classes updated notes, coz those are always inclusive of all types of problems and they are also T3 ( i.e. Tried, Tested and Trusted) by many's. I did it from Prime Vission (Classes, Mumbai) notes for practice as that is good enough, as i manage to get an exemption in mafa in my 1st attempt itself.
Secondly, dont ignore theory portion,if any, as if ur problem solution is wrong than direct zero but thats normally not the case in theory unless u dont write relating to the topic.
And yaa my suggestion is dont opt for any authors book as those will include lots many things which are never ask by ICAI since long time plus during exam days we feel nervus and get frustated ....i know we cant under-estimate ICAI but some sort of risk will always be present in each cases...
All the best