| BIMSTEC | Bangladesh India Manyamar Srilanka Thailand E C 
| Others |
| BIMSTEC | Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation
| Others |
| BIMSTEC | Bay of Bengal Initiative for Multi-Sectorial Technical & Economic Cooperation
| Others |
| BIMSTEC | Bay of Initiative for Multi Sectoral Technical Economic Cooperation
| Others |
| BIMSTEC | Bengal Initiative for Multi Sectoral Technical and Economic Cooperation
| Others |