Congress leader Jairam Ramesh Sunday shared a letter on Twitter which, he said, initiated 'Project Cheetah' in 2009 and accused Prime Minister Narendra Modi of being a "pathological liar" for criticising previous governments of not making constructive efforts to reintroduce the big cat in India.

Prime Minister Modi on Saturday hit out at the previous governments, saying no constructive efforts were made to reintroduce cheetahs in India after they became extinct from the country seven decades ago.