Its amazing!
You get emails and if you see the ad, you get paid the worth the ad is.
Its Cool and interesting thing is you dont have to wait for long to withdraw money out of it.
Concept is : Advertisers pay rupee mail to advertise for them using emails and in turn rupee mail pays you to check those emails. All an all I can say this is a great way of advertising your product as everyone is getting email ids and this way is going to be huge in short time.
I think you should check the faq section on the site before you join:
Also this technology is coming to your mobile as well, this technology is very simple that advertisers pay you for seeing their advertisement. Mobile technology is new, as more and more people are getting mobile so this is a unique idea of advertisement. Receive sms and get paid. Check out more about this mobile technology: Again Its a new Technology and soon it is going to be huge to promote product/services.
Current scheme is like this.
You will receive 20paisa for each sms you receive. These sms are about service/products in your city/area. So get the information about your city and also get paid for it. Also you get 20 paisa if your friend gets sms and 10 paisa if your friends friend gets sms.