Depending on your risk appetite, there's quite a few. On the one side of the spectrum, you have PPF and 5 year FDs among others, and on the other end ELSS and ULIPS. If you consider property to be an investment, then you should check out the tax relief it offers.
What is ClearTax?
ClearTax is the easiest way to e-File your Income Tax Return in India.
ClearTax makes e-Filing incredibly simple with great software and design.