The mutilated parts a blue bull (nilgai) were found in an area near the Ansal Aravalli Retreat under the Raisina zone here, a forest official said on Thursday.
Nilgais are found here and in Sultanpur, Farukhnagar, Jhajjar areas of Haryana.
"We have found the head and a leg of the animal. There was blood all over the place," District Forest Officer Shyam Sunder Kaushik said. The area has around 300 farmhouses and residents suspect that it could be an act of poachers who wanted its meat, he said.
"The incident came to the fore this morning when a guard spotted the head and a leg of the nilgai in the F-Block area. He immediately informed our office after which the wildlife department was informed," Kaushik said.
This is the first such incident and it is a matter of grave concern, he said. "We are going to register an FIR in this matter against unknown persons at the Bhondsi police station," Kaushik added.