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.
Links:
[1] http://admin.indiaenvironmentportal.org.in/data-statistics/question-raised-lok-sabha-counting-wildlife-animals-07022017
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/lok-sabha
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/elephant
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rhinoceros
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lion
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/statistics
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/parliament