India, Dec. 6 -- This writer first noticed the leather jacket, casually slung over a chair in a corner office in a deep-tech startup; then at a community event for techies in Bengaluru, she noticed more. Sure, there were worn-out T shirts and ill-fitting jeans, but there were as many smart chinos, sneakers from Comet and leather jackets.

Even though they are a little out of place in Bengaluru's mild weather, it would appear that the leather jacket, now ubiquitous in certain parts of the city - a trend started by NVIDIA CEO Jensen Huang - is the new tech bro look.

The founder of NVIDIA, one of the most valuable companies on the planet today, has been wearing leather jackets for 20 years, thanks to his daughter's influence. It's only now,...