India, June 6 -- Zerodha co-founders Nikhil and Nithin Kamath's mother, Revathi Kamath, shared a post showing her using the Bengaluru Metro to travel, praising the convenience of the public transport system. In a post on Instagram, the environmentalist and veena player shared a photo of herself dressed in a pink saree and standing inside the women's coach of the train.

"Travelling in the metro is so much convenient and that too in the female compartment! #nammametro," she wrote in the caption.

Revathi Kamath's post comes three months after her billionaire sons gifted her a brand-new Mercedes. Sharing the news on Facebook, she said that her sons ensured that she received the gift in a traditional way, along with proper rituals.

"My sons...