What are the different ways in which I can save tax?

I plan to invest money around Rs 20,000 to save from Tax. What are the options available for me. I have already invested money in LIC policy. But now I’m left with some more money to invest. Some of the options I have come across are
1. National Savings Certificate
2. PPF account
3. Fixed Deposit

I’m not interested in MF or ELSS

How to save tax on my salary?

I recently joined a new company.here my annual salary is 1.8 lakh and i also receive about 5000 as allowance monthly..please giveme some info on how to save tax as well as how toinvest wisely..thanks for the help..