To build ₹1-crore corpus in eight years, a person can invest ₹25,000/month in gold, which is expected to generate ₹36 lakh (10% annual return). Along with this, investing ₹30,000/month in mutual funds is expected to generate ₹47 lakh (12% annual growth rate). A lump sum of ₹9 lakh in mutual funds will generate ₹22 lakh (12% annual growth rate).