Home loan partial closure

HI Sreekanth, I had taken an home loan of Rs.34,00,000 (tenure: 15years) through SBI Maxgain last year. I read your article about home loan & mutual fund investment; https://www.relakhs.com/investing-mutual-funds-paying-home-loan/. So, I started investing in HDFC balanced fund. But I have a query and I need your clarification: Case 1: My EMI is 34K and if I put additional amount of 14k ie, total 48K per month from Jun'18, I will close my home loan in Apr'26 I have to pay Rs.16,13,000 as interest. Case 2: If I invest in mutual funds and my returns are 14% (for example), I will get Rs.20,77,000 from MF and I will close the home loan in Jun'25 I have to pay Rs.20,50,000 as interest. My query is though I close early by investing in mutual funds, but I end up paying more interest. So, please clarify me whether I can go for additional amount in EMI itself. Thanks in advance, Ram