As Ganesh Chaturthi is celebrated on a large scale in Mumbai, policemen deployed across the city in view of the festivity have been asked to be on alert, a police official said.
"We are on high alert and taking all precautionary measures to prevent any terror attack during the festival. Security has been intensified at vital installations and around Mumbai courts," the official added.
Nakabandi has been ordered and every vehicle is being checked thoroughly, the official said.
The blast took place around 10.15 hours outside one of the entry gates of the Delhi high court.
