According to a March 9, 2021 report[1], Bangladeshi jihadi terrorist groups Ansar Al Islam and Ansarullah Bangla Team have been sending large sums of money to a jihadi terrorist group in Kashmir using Bitcoin. The groups have been transferring funds using Bitcoin since 2014, and have received large sums from Pakistan and Gulf countries in the form of cryptocurrency. Arrested members of the Bangladeshi groups said they used Bitcoin as an easy way to exchange illegal funds. The use of virtual currency has been banned in Bangladesh since December 2017.
[1] Swarajyamag.com/insta/bangaladeshi-terror-groups-use-bitcoins-to-transfer-illicit-funds-to-terrorists-counterparts-in-kashmir-report, March 9, 2021.