India will send bomb experts of it’s National Security Group (NSG) to Bangladesh to help with investigations into two terror attacks in the country in a week, reports Indian news channel NDTV.

Indian media quoting some officials report the team will ‘analyse and study’ the bombings at an Eid prayer gathering in Kishoreganj on Thursday and the terror siege at a Dhaka cafe on 1 July.

Suspected Islamists carrying bombs and machetes launched another deadly attack in Bangladesh Thursday, killing at least four people at a huge prayer rally marking the start of Eid.

One of the attackers was also shot dead and four of his suspected accomplices were arrested after hand bombs were hurled at police manning a checkpoint just outside the main prayer ground.

‘Two policemen, an attacker and a woman who was shot during the (subsequent) gunfight were killed,’ national police spokesman A.K.M. Shahidur Rahman told AFP.

Nine policemen were also injured. They are in a critical condition and have been shifted to a military hospital in Dhaka.

Earlier, Bangladesh asked India to examine the speeches of controversial Mumbai-based preacher Zakir Naik after reports that two of the Gulshan attackers were inspired by him.

One of the Dhaka attackers, suspected to be Rohan Imtiaz, the son of a politician of ruling Awami League, ran a propaganda on Facebook last year quoting 50-year-old Naik, an Islamic televangelist, reports local media.