Hi! I have a suggestion for your mobile visitors (sure, there are). Check WapEmpire to get Indian offers. We have plenty of them and many are converting very well. There's an istrument called TDS link that will help you get the best offers. It's rather easy and doesn't take much of your time.
As it was already said, you do should remember of the niche, do not give people something they would not like. At the same time, don't avoid little risking. Sometimes it's not so easy to predict mobile visitors interests. The best way to choose the offers is testing.
Also, try not to get too much irritating ads when you begin earning, don't let profits drive you careless.
Have a good luck!