A rainy morning on a busy working day sparks a discussion on climate change at the AM Naik Tower in Mumbai. Subramanian Sarma, the whole-time director at Larsen & Toubro (L&T) and president of its energy vertical, talks about the spate of flooding in the country. “I had to send a note to our staff in Vadodara this morning due to a huge downpour there which has caused flooding,” he says, sitting in his office, which overlooks the Powai Lake.