The answer is poaching
Habitat loss, and illegal poaching for the quack Chinese medicine trade.
Bengal tigers have no natural predators. Their biggest threat is humans.
The bengal tigers with larger in population dwelling mostly in bangladesh i.e sunderbans are threatened by number of tribal people residing near it by killing them.
Humans
The caveman's biggest enemies were likely wild animals such as saber-toothed tigers, mammoths, and rival tribes. These threats presented physical dangers and competition for resources, making survival a constant challenge.
Siberian tigers, then Bengal tigers, both of which males can reach 600 pounds or more.
There are around 1800 Bengal tigers in India, and a further 300 or so in adjoining nations. The most populous of the remaining tiger subspecies.
No, Bengal tigers are not cannibals.
Bengal tigers have no natural wild predators.
bengal tigers are endangerd everywhere but not in zoos
Bengal tigers do not eat their mother.
"Bengal tigers" is "Bengaliska tigrar" in Swedish.