If you want to invest money and you want to get higher returns then you must keep a golden rule of investment in mind i.e. "Higher the Risk Higher the Returns."
Invest in a Startup
Find various startups online and contact them ask their game plan and invest in them. Nowadays startups are growing like anything. But before investing in anything you should understand their strategy, ho they will grow, how serious they are about their startup, how fast they grown or how fast they are growing, etc. You should always ask these kind of questions and once you are fully satisfied then only you should invest.
Tenure : depends upon startups
Invest in Real estate (Property)
Real estate is something that is really promising in India. While investing you have to see the actual value of properties in that area, how is the locality, How is the transport facility, etc.
Tenure: 3-6 years
Invest in Mutual Funds
If you don't want to go directly into stock market and invest then you can always invest in Mutual funds. There are few types of mutual funds and you can invest in them as per your suitability. Mutual Funds may give you 15% + returns. You can invest them with less of worry and earn good returns over there.
Tenure: 1-10 years
Well all of the above are the investment options that I personally prefer to. You should do proper market research before investing in anything.