I think we all know that there is no end of syllabus and books for preparing for CA exams.
I think that scanners will not be helful enough as we all do our coaching clases stuff and complete thrie questions banks and aall. We also complete institute's Practise manual and Stady mat. So we get to cover almost all the areas including previous years question. 

As per me instead of relying on scanner it is better to complete Practise manaula which is much more comprehensive then scanner and helful as scanner only contains past year question and suggested question which we already have covered during our self study and completing syallubus. So its just a waste of time and  effort which is much more importatn when we preapre for such exams specially CA,s

Regards/

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