Barak Sub-Basin
Singla-Barak Sub-Basin
Longai Sub-Basin
Umngi Sub-Basin
Sutang Sub-Basin
Tuivai Sub-Basin
Surma Sub-Basin
Myndtu-Sari Gowain Sub-Basin
Khowai Sub-Basin
Titas Sub-Basin
Sonai Sub-Basin
Lubha Sub-Basin
Manu-Dhalai Sub-Basin
Kalni Sub-Basin
Simsang-Kangsa Sub-Basin
Tlwang Sub-Basin
Kushiyara Sub-Basin
Juri Sub-Basin
Kynshi-Bualai Sub-Basin
Ghoratra-Danu Sub-Basin