The fourth edition of the Indian Navy-Bangladesh Navy Coordinated Patrol (CORPAT) commenced in the Northern Bay of Bengal on 22-05-2022 . Indian Navy and Bangladesh Navy units will undertake joint patrolling along the International Maritime Boundary Line (IMBL) till 23--05-2022. The last INBN CORPAT was conducted in October 2020.

• For the exercise, the Indian Navy deputed two indigenous warships (INS Kora and INS Sumedha). 
• Bangladesh Navy deputed BNS Ali Haider and BNS Abu Ubaidah.
• Maritime patrol aircraft of navies of both countries will also undertake joint patrols along the international maritime boundary line (IMBL).