The carcass of a tiger was found on Sunday in the Mailani range of the Dudhwa Tiger Reserve.
The carcass was found alongside the Gola-Pilibhit road near Chhedipur village here and the tiger is said to be two years old.
Sanjay Kumar Pathak, field director of Dudhwa Tiger Reserve (DTR), said that all vital organs, including jaws and nails, were intact though there were some abrasion marks on the carcass.
"The circumstances indicate that the tiger died in a road accident or it could be due to fighting during the mating season," Pathak said.
He said the exact cause of the death could be ascertained after post mortem by a team of experts from the Indian Veterinary Research Institute (IVRI), Bareilly.
The post mortem would be conducted according to the National Tiger Conservation Authority (NTCA) guidelines, Pathak said.