The Corbett Tiger Reserve in Uttarakhand has the highest number of 231 big cats in the country while three reserves in Mizoram, West Bengal and Jharkhand have none, says a new report released on Tuesday which is based on tiger estimation done last year. The over 600-page report of the fourth All India Tiger Estimation 2018 was released by Union Environment Minister Prakash Javadekar on the eve of Global Tiger Day, celebrated on July 29 every year, shows reserve-wise and state-wise tiger population distribution.

The 'Status of Tigers, Co-predators and Prey in India report for 2018' showed that out of the 50 tiger reserves in the country, three reserves - Mizoram's Dampa reserve, West Bengal's Buxa reserve and Jharkhand's Palamau reserve - have no tigers left. Currently, the tiger population within the reserves is 1,923 (65 per cent of the total tiger population of India), the report said.