In the wake of the Pathankot terror attack, Tourism Minister Mahesh Sharma today carried out surprise visits at tourist spots in the national capital to check security arrangements.<br/><br/>Sources said, Mr Sharma visited Qutab Minar, Red Fort and other tourist sites.<br/><br/>Security has already been enhanced in the national capital following the pre-dawn attack by a group of heavily-armed Pakistani terrorists on an Air Force base in Pathankot. Security was significantly heightened at the airport, railway stations, bus stands and other vital installations in the city.<br/><br/>According to Delhi police, vigil has been enhanced in several areas, including popular market places, in South Delhi, Central Delhi and the VIP movement zone in Lutyen's Delhi.