Compounding Power of Money is the 8th Wonder in this World. One who Understands Compounding Earns it, One who does not Pay it - Albert Einstein
Anyway, you have to Invest Rs 1,50,000 every year to Save Tax. If you are doing it for many years, your strategy has to be Simple and Sensible. Easy to execute and Monitor.
Invest Rs 12,500 every month in a systematic Investment Plans (SIPs) of Best Mutual Funds available that gives you returns of 12% - 15% or higher.