Hi Rajneesh
Why dont you go for Product drilldown reports (KKO0)
You need to assign a cost comp structure in OKN0 and choose Product Grp = Material Group in OKN0
After that you execute KKRV to collect data and then use KKO0 reports.. To a large extent, this should meet your need
In one of my previous posts i explained how to make a report in KKo0 with all screen shots.. You can search in the forum, the discussion was going on with a lady called Nikitha
Also, i prefer to have a different Cost Comp Str in OKN0 than the usual cost comp str used in CK11N.. This one is an extended version of the one you use in CK11N, with additional component for Scrap, etc
I suggest you start with the CCS of CK11N and based on experience, you enhance it
Br, Ajay M