Question raised in Rajya Sabha on Endangered species, 14/03/2016. The Botanical Survey of India (BSI) and Zoological Survey of India (ZSI) under the Ministry of Environment, Forest and Climate Change conduct survey of threatened and important species of the country. As per the data available with BSI, out of 19156 species of vascular plants (Angiosperms, Gymnosperms, Pteridophytes) from various surveys carried out in the country, 1236 species belong to different threatened categories like Critically Endangered, Endangered and Vulnerable.