In view of the restrictions imposed by the Park authorities, the tourists preferred to stay away from it, including the tiger reserve area, official sources said.
Footfall of even domestic tourists, mostly from West Bengal and Odisha too declined during the period.
The number of foreign visitors was only 43 during the ongoing season from November to May this year, the sources said, adding, the steep fall in the number of tourists is mostly attributed to the security concerns inside the sanctuary area following the onslaught of Left ultras since March 2009.
At present the tourists are not permitted to stay overnight inside the sanctuary limits. Only day tourism is allowed by the tiger reserve authority.