India added 200 more tigers in the past four years to its total population of the big cats, raising the number of tigers to 3,167 in 2022, up from 2,967 in 2018. On April 1, India celebrated 50 years of Project Tiger. To mark the occasion, Prime Minister Narendra Modi unveiled the All India Tiger Estimation (AITE) 2021-2022, a once-in-four-year survey conducted by the National Tiger Conservation Authority (NTCA) in association with state forest departments and the Wildlife Institute of India.