Earnings to retire from corporate.

Taking a top-down approach:

Period: 9 years. Assuming you 2 lakhs/month is the amount you need to lead a good life (as per today's market). By the time you turn 32, you will need approx. 3.5 lakhs/month for the same lifestyle.

Assuming that you can generate a modest 10% returns on your corpus. 6% goes to adjust inflation, 1% for growing your corpus and the remaining 3% is what will support your lifestyle.

This 3% amount should give you 3.5x12 = 42 lakhs/year after taxes. Assuming the average tax. to be around 20% (10-15% for stocks/MFs and 30% for Debt,FDs). The pre-tax amount that the 3% of your corpus should yield is 52.5 lakhs.

This bring your corpus size to 17.5 crores. This is the amount you need to accumulate by the age of 32. You can adjust the numbers as per your lifestyle expectations to arrive at the final number. This is an approximate sum, enough to give you a ballpark figure.

If you think you will get better returns, then the corpus size will reduce drastically accordingly.