a) The number of tigers in India increased from 1411 in 2006 to 1706 in 2010.
b) The tiger census 2010 was unveiled by the Union Home Ministry.
c) The tiger occupancy areas decreased from 93600 sq. km to areas of 72800sq.km.
d) In the Sunderbans, the tiger Census took place for the first time.
Answer: The tiger Census was unveiled by the Union ministry of Environment and Forests.
