Making money online is not so tough but also not so easy. Here, I'll say that you can start youtube channel, a blogging platform, you can start earning by affiliate marketing. But for all this, you should have deep knowledge as well as patience.
Rajat16, I'm not quite sure about your starting financial resources, but there are plenty of options, like trading online via trader Admiral Markets. I've found information about them here ( weblink: https://tradersunion.com/brokers/forex/view/admiral_markets_uk/ ), and after that started trading with this exact broker. And what I can say for sure, is that they are reliable and it's financial market's information is always trustworthy positive, that's why I can recommend them.