Any tips for preparation of ipcc costing???

Why not, few tips from me,

Costing and FM both are combined having equal weightage of MARKS i.e. 50% each.

(1) If you analyse the past papers, you will find theory is equally important as well as numrical sums, it have weightage of 35 Marks and  in exceptional cases it can be of 40 Marks.

(2) So, its best to prepare theory also with equal importance. You can prepare theory with compilations and practice manual provided with main books.

(3) Full theory chapters must be prepared throughly. Like chapters having important definations.

(4) Theory also comes from practical chapters which can prepare in coaching class also, i.e attend the starting of chapters with full concentration and revise also.

Now about practical chpaters,

I assume that you are attending coaching and preparing the chapters well so, here I want to add one more point that worth a much,

"Solve all problems of past papers given in compilations and RTP provided by ICAI."

I written more about theory only because generally students ignore that part.

Hope it will helpful for you, please comment in case of any doubt.

Thanks,

Abhi