India, Feb. 19 -- When Dhruv Toshniwal returned to India after studying in the US, one gap stood out: men's fashion had plenty of buzzy labels, but very few trousers that fit Indian body types well.

This gap persisted even as the bottomwear market in India exceeded $4 Bn, with consumers demanding customised, high-quality apparel. Shirts, casual wear and footwear have evolved, but trousers have seen little innovation, poor stretch and inconsistent sizing. As a result, most men choose between buying off-the-rack products and paying for alterations or investing extra time and money in custom tailoring.

Dhruv and his brother, Udit Toshniwal, set up The Pant Project to challenge the status quo. Instead of treating trousers as a generic basic...