Help in final costing

Dear Friends,

I am sitting for 2nd Group in this month, but could not get the confidence in Costing paper. I would appreciate if you guys can help me with the selected chapters which must be done to secure 40+ atleast in this paper.

My all other 3 papers are well prepared but not this costing paper. Please help me to make the productive strategy in these last few days.

Please suggest.

Regards

Deepak Arora