New Delhi, June 7 -- Revathi Kamath, the mother of Zerodha co-founders Nikhil and Nithin Kamath, praised Bengaluru Metro in an Instagram post. The environmentalist shared a photo in a pink saree, standing in the women's coach.

"Travelling in Metro is so much convenient and that too in female compartment!!!" she wrote.

In her Instagram bio, she calls herself an "environmentalist and Veena player". There is no mention of her remarkably-accomplished sons.

However, in an earlier interview, she praised her sons.

"I have brought them up to contribute. My sons, especially Nithin, tell me - 'You do it with your own money and don't depend on any organisations, only then people will recognise you.' Nikhil at times will transfer money for a proj...