New Delhi, April 19 : Delhi Police are keeping a watch on rooftops through aerial surveillance in sensitive areas across the national capital after the Jahangirpuri violence last week. Several areas including Jamia Nagar and Jasola are under “aerial patrolling”, the police said. Besides, police officials from various districts have reached out to comm ties and appealed for peace and harmony. A meeting was organised in Jahangirpuri. The police also promised professional and fair investigation. CM MR