Full explanation
Retirement savings depend on: (1) desired retirement age, (2) expected expenses in retirement, (3) existing savings and EPF corpus, (4) expected returns, (5) inflation. Rule of thumb: save 15–20% of gross income throughout your career. For early retirement (before 55): 25–35%. Your retirement corpus target = annual retirement expenses × 25 (for 4% withdrawal rate). Inflation-adjust: if you want ₹1 lakh/month in today's terms for retirement 25 years away, the actual corpus needed is much larger. Use the retirement corpus calculator for your specific numbers.