Honestly, your colleague's argument sounds good on paper but there's a catch most people miss — 14.5% on a personal loan is a guaranteed cost. Mutual fund returns are not guaranteed. Nifty 50 index funds have given 12-13% CAGR historically, but that's over 7-10 year periods. In 18 months? Could be 20%, could be -10%. You're comparing a certain outflow with an uncertain return. That math doesn't work in your favour for such a short window.
So my take — close the loan. Here's why it makes sense for your specific situation.
First, the actual savings. On ₹3.2L at 14.5% with 18 months left, you're probably paying around ₹35,000-40,000 in interest total. That's money straight back in your pocket. No market risk, no volatility, guaranteed.
Second, your emergency fund is thin. ₹80k for 2 months is okay but not great. Don't touch your bonus for this, but after the loan closes, redirect that ₹9,800 EMI every month into a liquid fund — Parag Parikh Liquid Fund or ICICI Pru Liquid are decent options. In 6 months you'll have a much better cushion.
On prepayment charges — yes, many banks do charge. HDFC, ICICI, Kotak all typically charge 2-4% on the outstanding principal for personal loan foreclosure. But here's the thing, even if HDFC charges you 3% on ₹3.2L, that's around ₹9,600. You'll still save more in interest than that penalty. Do the exact math with your bank before going. Call their customer care or visit branch, ask for the foreclosure statement — they're required to give it.
Also check if your loan agreement allows part-prepayment. Some banks let you pay a chunk without closing fully, and penalties sometimes only apply on full foreclosure.
After the loan is gone, start a SIP. ₹15,000-20,000 per month into a mix of Mirae Asset Large Cap and a flexi-cap like PPFAS Flexicap. That's when equity investing actually makes sense — long horizon, regular investing, no EMI pressure hanging over you.
Close the loan. Start fresh. Then invest properly.