Based on the assumption that you can invest 20k a month, I would advise you to invest into
a. Mutual Funds: at least 10k mainly into Equity/High Risk Funds assuming you can wait for minimum 5 years in the market (Install Kuvera: you can add my referral code: 2O17V)
b. Keep 5k into Liquid funds for emergency needs, build a good corpus over the time
c. 5k into corporate bonds (WintWealth app helps you to invest with a minimum sum of 1k). Reason why bonds and not FD bcz you can have more fixed interest.
You can customise the above based on the amount of investment you can make. Later once you get a feel of all of these, invest into Major companies shares like Tata, reliance, etc.
Let me know if you need more info.