The carcass of the 25-year-old rhino with three bullet injury marks was found by forest officials this evening in Baghe Tapu area of Sonitpur district, Range Officer Basanta Kakoti said.
The animal was killed last night and the poachers sawed away its horn, Kakoti said.
Baghe Tapo is about 50 kms from the range office at Biswanathghat in the Sixth Addition area of Kaziranga.
On March 23, a rhinoceros was shot dead by poachers between Kharoli and Borhola camp of the World Heritage site's Burapahar range and its horn, nails and patches of skin were removed.