Question raised in Lok Sabha on Counting of Wildlife Animals, 07/02/2017. Census of major flagship species is undertaken at the State-level by the respective State/Union Territory Governments periodically. However census of tiger and elephant is undertaken at the national level once every four and five years respectively. State-wise comparative estimated population of tigers, elephants, rhino and lions, as available with the Ministry, is given in the Annexure. There is a general trend of increase in the population of tiger, elephants, rhino and lions in the country.