@amresh
See quants is something which needs practice and a lot of practice. If you are getting more than 95%ile and not clearing QA section, analyse the papers and see the areas in which you are lagging behind. In most of the cases, its geometry or number systems. Solve LOD2 and LOD3 exercise from Arun Sharma. It is enough, and more importantly, dont go for all quanti questions in the exam. Improve your accuracy and scores will improve automatically !!
Gosh! That was my first advice here in PG. Feels great now !!