How to earn money online in India without investment

There are many ways to earn money online in India without spending a single penny but the main key to your success is "patience".I have personally tried all these methods and these methods are common and are used worldwide by people to grab some extra cash.some of the methods are-:
1.PTC sites- PTC stands for "Paid to click sites" it is the most easier and most popular method to earn money.In these sites one is paid to click in given advertisements.The biggest drawback of this method is that there are many scam websites who do not pay you for your work.So the key factor is to go with Legit websites.most popular of these websites is Neobux .If you go with these method it is a very time taking process and a lot of patience is required.

2.E bay affiliate-:You can earn a lot of money with the eBay Partner Network, by driving high quality traffic to eBay or one of their partners.you will be paid for each click that will be done through your link.
3.Amazon affiliate-:One can earn money easily by being one of amazon affiliate.Just put ads on you blog or website after registering with Amazon affiliate.
4.Google adsense-:It is also a popular method to grab some extra cash.Just sign up with Google adsense then give google a place in your blog or website to put its ads.You ca earn from $0.1 to $15 for each click on ads.