BIMSTEC, whose full form is Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation, is an international economic cooperation organization from the Gulf of Bengal onshore or review countries. . In November 2014, Bangladesh, India, Burma, Sri Lanka, Thailand, Bhutan, and Nepal were members.

The aim of this organization is to promote rapid economic growth, social progress, and to create a positive environment among member states to coordinate on issues of common interest. This regional organization was established in 1997 under the Bangkok Declaration. Initially, it had only four member countries and was called 'BIST-EC' (ie Bangladesh, India, Sri Lanka, and Thailand Economic Cooperation Organization).

Bimstec summit 2019 was held in Nepal's capital city Kathmandu and the 2020 edition is going to be held in Sri Lanka but due to the ongoing worldwide corona pandemic we might be not able to see the event being organized,