The dog was taken to a veterinary hospital for treatment and is doing well, police said. Gowtham Sudarshan, a final year MBBS student of a private medical college, flung the dog from the terrace of a building here and the act was video allegedly recorded by his friend Ashish Pal. After the video went viral, animal welfare activists, including Antony Clement Rubin and Jennifer Jacob, lodged a complaint with police which registered an FIR and launched a search for them. The duo were booked for cruel treatment meted out to an animal under IPC sections 428 and 429 and Prevention of Cruelty to Animals Act (Sec 11 (1-a). Subsequently, they were arrested on Wednesday. Mr. Rubin said the dog luckily survived and was taken to a veterinary hospital. “It has suffered fractures in its front and rear legs. It is being treated,” he said.