Royal Bengal tigress Rani has escaped from Buxa Tiger Reserve in West Bengal for the second time, days after being brought back from Assam. Forest officials have launched a search operation and issued a red alert following her latest escape. Kolkata: Days after being traced to Assam and brought back, Royal Bengal tigress 'Rani' has escaped again from Buxa Tiger Reserve in West Bengal's Alipurduar district, Forest Department officials said on Monday.