Stick with it Tanmay :) Looking at your older and then new images, it is plain to see you are improving your art. Love the Indian villages, very tranquil, but also like your take on the topical issues like the Delhi rape.
Get your name out there as much as you can, via social media is good....Twitter, Instagram, FB, use them all to (gently) advertise yourself but don't forget to have fun as well because your audience might get bored if you only advertise.
I agree with Mike Savad that more universal themes/ subject have more potential to sell......well more universally......but saying that, if Indian scenes are close to your heart and you are good at them, be careful not to force yourself to do something you do not enjoy so much. You could loose the joy you find in creating your art.
And you never know where will your sales take you.
But stretching yourself a little and trying other stuff is always good too.....very good luck to you Tanmay in your future sales!