I your sitge is having more traffic from INDIA than I would recommend you to place the affiliate ads of Flipkart. I have been using it on my celebrity blog and it is generating more money than clickbank/adsense etc. Since the major traffic from India you will not get any benefit of collecting there email address or promote any paid products etc. Best for you is place the adsense ads with rotator so that the ads keep on changing there location and also create the ads matching to your site text format (color, font etc). try flipkart affiliate and you will see some good response from it for India.