Aditya Birla Sun Life AMC Ltd launched two factor-based index funds: BSE 500 Momentum 50 and BSE 500 Quality 50. Open from July 21 to August 4, 2025, with a ₹500 minimum. Momentum targets high-performing stocks for higher returns (higher mid/small-cap tilt), while quality focuses on financially sound companies for consistency (higher large-cap tilt), offering diverse options for retail investors.