Indian security agencies have sought intelligence cooperation from Bangla-desh in a bid to curb terrorism by jihadists, competent sources said on Friday.
The neighbouring country is on a high alert after digging into the Burdwan blast, which gave leads about the link of banned Jama'atul Mujahideen Bangladesh (JMB), Jamaat-e-Islami and other Islamic terror groups based in India.
Bangladesh security agencies are also on high alert and border security forces on both sides have increased their vigilance to check cross-border terrorism, which both countries have agreed to contain.
Security agencies of both the countries have separately launched manhunt for the suspected militants who may have links with the terror network in the region. The manhunt and profile preparation of suspects of those dead, injured and fugitives of the Burdwan blast is not a joint operation, an official said.
India is scared of Al-Qaeda, Harkatul Jihad Al-Islam (HUJI), Jash-e-Mohammad (JeM) and Lashkar-e-Taiba (LeT) who had plans to bomb key cities of India including New Delhi, Mumbai, Kolkata, Bengaluru (Bangalore) and also sea resort Goa.
Indian intelligences have confirmed Delhi that the terror networks hand-in-hand with  other militant groups may cause panic and bring down the commercial activities and paralyse the city life.
On the other hand, Liberation War Minister Mozammel Huq told The Daily Observer that Bangladesh had alerted New Delhi ahead of the October 2 Burdwan blast in West Bengal.
The minister said most of the senior JMB bomb-makers, planners and finance leaders are presumed to have taken refuge in West Bengal and have merged with mainstream population. He, however, did not elaborate on what information has been delivered to New Delhi.
Meanwhile, joint teams of West Bengal CID, the National Investigation Agency (NIA) and central intelligence agencies of India are interrogating the three arrested suspects following the blast -- two women, Razia and Amina, and Badrul Alam Molla.
The explosion occurred at a rented house in Burdwan on October 2 in which two persons, believed to be members of JMB, died.
In Assam, the Indian investigators revealed that the six JMB members arrested in Barpeta were part of the outfit's plan to launch subversive activities in Bangladesh.