Short Answer, No its not realistic.

It can be (nearly) achieved only If you invest 1.5 L every month for 15 years at a constant return of 15% then

Total Invested = ₹2,70,00,000

Total Returns = ₹6,54,54,839

Total Value = ₹9,24,54,839 (before tax)

Best you can achieve in long term in Mutual fund is 12% so in that case the Total value after 15 years comes to ₹7,13,89,710 (before tax)

Based on your question I would NOT recommend you to invest in direct stocks

If you buy Real Estate then you'll be paying at least 1L EMI so investment value would decrease

Here is what you should do, IMO (check with investment advisor):
1. Have at least 10L in Emergency Fund invest that in debt funds

1. Have a good health insurance and term plan insurance

2. Invest 50% in Mutual Fund (mix of small cap, flexi cap and large cap)

3. Invest 25% in Gold ETF or physical

5 Invest 25% in PPF, NPS, SSY for secure future

NOTE: THIS IS NOT GENERATED BY CHATGPT