A white tigress gave birth to a litter of four cubs in the Patna zoo here Wednesday, an official said.
Tigress Swarna gave birth to four cubs, two normal and two white, said S. Chandrasekhar, director of the the Sanjay Gandhi Botanical Garden, popularly known as Patna Zoo.
"The cubs are healthy and we are looking after them carefully," he said.
The last birth in the Patna zoo took place in 2012.
Last year, a tigress gave birth to three cubs in Bihar's only tiger reserve - the Valmiki Tiger Reserve - in West Champaran district.