With a monthly investment of ₹15,000, the total investment becomes ₹45 lakhs. At a 10% interest rate, the return is ₹1,55,68,356. The corpus becomes ₹2,00,68,356. 60% (₹1,20,41,013) is lump-sum, 40% (₹80,27,342) is annuity. At 8% annuity return, the monthly pension is ₹53,516.