Police in Delhi, Mumbai and Goa have been alerted by intelligence agencies about possible twin threats from Islamic State and al-Qaeda.

Quoting sources, The Times of India has reported that these inputs warn of avenging the New Zealand incident  and possible strike on Jewish establishments and have been acquired in just a span of four days.

According to the report, terrorists will possibly use a vehicle or a knife in the attacks. Intelligence have suggested that security around the Israeli Embassy, Consulate General in Mumbai as well as synagogues and Chabad houses be tightened as musch as possible.

On March 20 came alert which spoke about avenging the New Zealand attack.

"As per the information received from multiple sources, an audio speech of IS spokesperson Abu Hassan al-Muhajir is being circulated on closed online groups and chat platforms wherein Muhajir is heard calling on his supporters to avenge the massacre at the mosques. This audio and other chatter indicates intent to avenge the incident. Appropriate action may be taken in this connection", TOI quoted the input.

Reportedly, Delhi Police have increased security outside  with huge deployment of forces.

On March 23 came the second alert which is about a possible strike by an al-Qaeda cell at Jewish residential establishments or synagogues.