The accused were being probed after they were booked on March 31 for illegally entering the forest when the crime came to light, an official said.
A complaint was filed by animal rights activist Priyanshu Jain in Lasudia police station after the video of the incident, which occurred on March 19, went viral on social media.
The actress shared a disturbing video clip on her Instagram timeline in which a young temple elephant, after being threatened with a stick, is seen obeying the orders of its mahout.
The pastor, who lives near the Evangelical Lutheran Church (ELC) Chowk (square), initially tried to shoo away the dog with the air gun who had eaten some fowls at his house.
When the members of Sewa Hi Sankalp confronted the accused, the accused claimed that he used a catapult to hit the two dogs as they had killed his 10 to 15 chickens.
The incident took place about a month back in Simariatal village, while a video of the brutal killing surfaced on social media on Sunday, following which an animal activist lodged a police complaint.
The dog entered the house of Jagdish Chauhan alias Thakur (40) on Sunday and escaped with a bag of mutton kept for cooking in the morning.
Collectors, other officials told to keep watch on incidents of cruelty; activists stress on need for more awareness
An offence under section 428 (commits mischief by killing animals) and other relevant provisions of the Indian Penal Code (IPC) was registered at Nagjhiri police station on Friday, the official said.
The report also suggested captive elephant committee monitor the welfare of captive elephants.
Yet another instance of cruelty to animals surfaced in the state on Saturday, after the video of a dog tied to a scooter being dragged along a road at Edakkara in Malappuram went viral.