Personal Finance SIP vs lump sum: Which is the better route for ELSS investment? Updated : November 08, 2019 06:32 AM IST Self-employed individuals as well as investors who do not have a steady source of revenue should consider investing in lump sum amounts. The primary difference between lump sum investment and SIPs are their varying degree of risks. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.