Exclusive: Meet the IRS Officer Behind India's 1st Railway Station with Vertical Gardens!EnvironmentBy Tanvi Patel26 Jul 2018 18:11 ISTLast year, when the Air Quality Index (AQI) was recorded at 275 in Ludhiana, environmental scientists visited the city. They even visited Mehra's office and were surprised at a discovery—the AQI at IRS officer Rohit Mehra's office was just 78!Read More