Manas Tiger Reserve was created in 1973, with
Manas Sanctuary as its core.
Manas Sanctuary with an area of 360 sq. km., was created way back in 1928.
Prior to the declaration setting up the sanctuary, the area was a Reserved Forest
called Manas R.F. and North Kamrup R.F.
The Raja of Gauripur and the Cooch-Behar royal family were using these areas
as a hunding preserve.
Later, the sanctuary was extended by two successive additions, in 1951 and 1955,
to 391 sq. km. by including the entire North Kamrup R.F. and the Manas R.F.
Subsequently, the Kahitama R.F, the Kolilabari R.F and the Panbari R.F. were
added and the area was declared as Manas National Park in 1990.