New Delhi, June 29 -- A man allegedly assaulted a security guard at a residential apartment in Dwarka Sector 18A on Thursday, police said, adding that a case has been registered and the accused has been sent a notice to join the investigation. A CCTV video clip of the incident also surfaced on social media, showing the suspect hitting the guard with a slipper, kicking and punching him in the presence of others. Deputy commissioner of police (Dwarka) Kushal Pal Singh said a written complaint was received on Thursday from Ajit Singh Nandal, president of the residents' welfare association of the society, alleging that a resident assaulted the security guard. "According to the complaint, the accused objected to the security protocol requiring visitors to make an entry. Thereafter, he assaulted the guard, confined him, and created panic in the society. The injured guard was sent for medical examination," he said. karn singh...