[4] The first emir of Wilayat al-Bengal, Abu Ibrahim al-Hanif, is believed to be Mohammad Saifullah Ozaki (born as Sajit Chandra Debnath, 1982) a Bangladeshi Japanese economist who went to Syria in 2015 and joined IS.

[9] The terrorist organisation has used social unrest, the dissolution of language barriers, and local underground support to recruit South Asian militants for global jihad.

In 2002, the Bangladeshi extremist group Jamatul Mujahideen Bangladesh (JMB) formed a committee in Malda City, India.

JMB, which was funded and militarized by the Taliban in the AfPak region before receiving ISIL support,[12] targets minorities in Bangladesh.

[11] Attacks inspired by ISIL have occurred across South Asia, including Quetta, Pakistan, Kabul, Afghanistan and Dhaka, Bangladesh.

[19] ISIL has admitted targeting (and attacking) secular Bangladeshis, Shia Muslims, foreigners, bloggers and other individuals who oppose their goal.

[10] The group has a sizable online presence in Bangladesh through social media, and a growing physical influence (despite government denial).

[39] Despite many attacks attributed to ISIL by police and claimed by the organization, the government denies its presence in Bangladesh[12][10] and has been slow to react to homegrown threats.

[63] To bolster governmental strength in Bangladesh, the country have cooperated with the United States to fortify their borders against bi-directional militant migration.

[25] Bangladesh's government has committed itself to the anti-terrorist movement, participating in the South Asian Association for Regional Cooperation counter-terrorist protocols and adopting the stance and measures promoted by the UN Global Counter-Terrorism Strategy.

[58] At January 7th 2023, Bengali police has arrested 2 men who was suspected to be part of ISIL at Howrah's Tikiapara area in Kolkata, after they was involved in spreading tentacles of the group.