Airports across the country are now on the high alert. The coast of west state Gujarat is also under tight security.
The Indian Bureau of Civil Aviation has issued a hijack warning Thursday morning for Delhi, Bangalore and Chennai airports.
Previously the Bureau of Civil Aviation received an e-mail, which said that on Dec. 6, terror groups might strike at these airports to hijack a plane.
Due to this warning all hand baggage will be physically checked by security forces even after they have been put through the X-ray.
All cars approaching the airports will also be checked and the passengers need to report three hours in advance.
The police are trying to find out who is behind the e-mail, which was first sent to a news organization in Gujarat last week.
