guys i'm back after some more investigation... and final figured out the another core problem... dedicated gpu is not the only problem... internal gpu is also a issue..
technical details:
so as we know dis laptop employs optimus technology.. so what dis is? well... ur exact output is always connected to intel vga... i.e. ur final output monitor... so where da heck nvidia???
nvidia sits aside always in resting mode... it only become active as when he receives some certain signals... like d3d calls openGL calls CUDA calls blah blah!!! or when intel gpu says he is not capable to render...
solution:
dedicated gpu overheat solution i have already given...
do the following steps to prevent overheat of intel vga and gaming exp will be awesome...
go in power settings.. click advanced.. scroll down to processor power options use minimum value 5% and max 75%.. (note: do dis step only if u think ur cpu is gud enuf or not doing any background processing)
next open intel gpu properties...
click 3D
filtering >>> application settings...
vsync >>> Force ON
check application optimal settings...
click power options....
select max battery for both profiles i.e. plugged in and battery...
move the slider to max battery...
done all....
enjoy gaming ..
... like I do...
contact if any issues...