According to a senior police official, security has been stepped up in popular malls and areas which have clusters of cafes and restaurants as it was a popular cafe which was targeted in Sydney.
"All the necessary steps have been taken to ensure security in Delhi," said Delhi Police Commissioner BS Bassi.
Delhi Police has already been keeping a heightened vigil after a red alert was sounded in the city on December 5 over intelligence inputs of a possible terror strike.
Some 15 people were taken hostage today by the gunman in Sydney with the crisis, which went on for over 16 hours, ending when heavily-armed police stormed the cafe.