College student looking for side hustle ideas (even small earnings are fine)

I'm an engineering student, looking for a side hustle to earn some money on my own. Even ₹500–₹5,000 a month is enough to start. I'm not looking for the usual suggestions like freelancing, coding, dropshipping, or surveys. I'd love to hear about underrated or unconventional side hustles that you've personally tried or seen work. What did you do, how much did you earn initially, and would you still recommend it in 2026?