"We don't know the reason for its death. The whale might have died two days ago, and washed ashore yesterday," said Divisional Forest Officer (Berhampur) A K Behera.
"It might have died after being hit by fishing trawlers," said Professor K C Sahu of Marine Sciences Department of the Berhampur University.
Locals spotted the carcass and informed the officials, said Secretary of Ganjam District Sea Turtle Protection Committee Rabindra Sahu.
Sperm whale is the largest toothed whale in the world. It can stay submerged for about 90 minutes and can dive down to 2,250 meters, officials said.