Google Ad sense is apart of Google. A advertising & publicising agency who place an ad on the various contents available in the word of internet like websites, Blogs, Videos & generate Money from it.
You can also earn from Google ad sense for that you need an Google adsense account but before that you need a good quality content in internet it could be in form of website, blogs, videos where Google place an ad.
To open google adsense account just go to
http://www.google.com/adsense
and follow the instructions. It is very easy & simple & monetize your content by giving the link in Google adsense & after verifying from Google. They start place an ad on your content. As per click, or as per per view on ad, you will earn some money, from that Google take some part & another give it to you. Whatever you earn is in dollar & you can convert into Indian rupee by Paypal.
Now, the next question is arise in your mind how much we can earn, Actually earnings have no limits depends upon various factor like how much traffic you attract on your content & how much click you will get on ads, how much advertiser pay to Google, depend upon quality of content . I think just work on your content all the stuff like money, traffic will take place.It’s not a over night game, you have to put lot of energy.
But keep in mind you content should be original never use copy paste or duplicate content otherwise your Adsense account will be banned.
You can make it money, if you able to deliver quality things for your user
Thank you.