Shark Tank India-featured D2C innerwear startup Bummer has raised Rs 9.25 crore in a pre-Series A1 funding round. The round was led by Zerodha co-founder Nikhil Kamath's Gruhas Collective Consumer Fund, with participation from existing investor Fluid Ventures. It offers products like bikinis, bralettes, hipsters, shorts, boxers, trunks, briefs, pyjamas, and loungewear.