Police was informed by a dairy owner at 6 am on Wednesday that two of his cows were lying dead in Sanjay Jheel Park opposite Kotla village, said a senior police officer.
For lack of enough space, the dairy owner would usually leave his cows in the park where they used to gaze. However, when the dairy owner visited the park in the morning, he found that two of them were missing, police said.
Later, he found the two cows died in the park following which he informed the police, the officer said. When the police reached the spot, they found that the two cows had been killed while others were safe.
The dairy owner's son said his family was in the dairy business for the last 40 years and they had 15 cows. "Nothing like that happened before," he said.
The bodies were sent for autopsy to ascertain the cause of death, the officer said.
A case has been registered under Prevention of Cruelty to Animals Act and relevant sections of the Indian Penal Code against unidentified persons, he said, adding additional security has also been put in place as it is a communally sensitive area.
Taking serious note of the killing of two cows in Trilokpuri, Delhi Minorities Commission (DMC) chairman Dr. Zafarul-Islam Khan wrote to Delhi Police Commissioner warning him that miscreants may try to use the incident to trigger violence ahead of polls on 12 May in the city.