What eats the white Bengal tiger?

There are no natural predators that kill and eat the bengal tiger.

on the other hand - Tigers are pure carnivores. They prefer hunting large ungulates such as chital, sambar, gaur, and to a small extent also barasingha, water buffalo, nilgai, serow and takin. Among the medium-sized prey species they frequently kill wild boar, and occasionally hog deer, muntjac and Gray langur. Small prey species such as porcupines, hares and peafowl are also hunted and form a very small part in their diet. Sometimes, they also prey on domestic livestock too that wander off into the jungles