Making a strong pitch again construction of a metro rail carshed in Mumbai green lung Aarey, former Maharashtra environment minister and Yuva Sena chief Aaditya Thackeray on Sunday said the opposition to the project was to save the metropolis' biodiversity.

He said there are daily sightings of leopards in Aarey, a forested patch adjoining the Sanjay Gandhi National Park in the north-west part of the city, adding that