I have purchased this laptop before 6 month and it is smoothly working. it has 4 gb of DDR3 ram which is very fast. I think you must try this one. it comes under 30k so its a budget laptop .battery lasts good while on internet and while gaming it drains quickly.
it comes with 1 tb of hard disk, 2 gb of graphics card(intel hd graphics 5500)by which you can play games without lagging. a good thing is that it comes with 1 year of warranty and as you know there is so many service centers available all over India .