India, June 24 -- The Directorate General of Civil Aviation (DGCA) on Tuesday said that it has started a special safety review of the country's airports to strengthen aviation safety and has started comprehensive surveillance at several major airports, including Delhi and Mumbai airports.

The exercise was conducted by two teams of the joint director general (JDG) of DGCA during the night and early morning hours at the airports. Officials said similar reviews would also be conducted at Hyderabad and Kolkata airports.

The aviation regulator said that the findings recorded by the team during the surveillance had been communicated to the operators for taking corrective action within seven days.

The review is in process, a DGCA official sai...