| Species | Name | Family | Habitat | Length (cm) | Trophic Level | Status |
|---|---|---|---|---|---|---|
| Aborichthys kailashi | Nemacheilidae | demersal | 11.3 SL | 2.7 | native | |
| Aborichthys pangensis | Nemacheilidae | demersal | 6.2 SL | 2.8 | native | |
| Aborichthys waikhomi | Nemacheilidae | demersal | 6.8 SL | 2.8 | endemic | |
| Acanthocobitis botia | Mottled loach | Nemacheilidae | demersal | 14.9 TL | 3.2 | native |
| Acanthocobitis pavonacea | Nemacheilidae | demersal | 8.0 SL | 2.8 | native | |
| Ailia coila | Gangetic ailia | Ailiidae | pelagic | 30.0 TL | 3.5 | native |
| Amblyceps apangi | Amblycipitidae | demersal | 15.9 TL | 3.2 | native | |
| Amblyceps arunachalense | Amblycipitidae | demersal | 13.2 TL | 3.2 | native | |
| Amblyceps mangois | Indian torrent catfish | Amblycipitidae | benthopelagic | 12.5 SL | 3.2 | native |
| Amblyceps waikhomi | Amblycipitidae | demersal | 4.5 SL | 3.1 | native | |
| Badis assamensis | Badidae | benthopelagic | 6.8 SL | 3.3 | native | |
| Badis badis | Badis | Badidae | benthopelagic | 7.1 TL | 3.3 | native |
| Badis blosyrus | Badidae | benthopelagic | 4.2 SL | 3.2 | native | |
| Badis dibruensis | Badidae | benthopelagic | 5.0 TL | 3.2 | native | |
| Badis kanabos | Badidae | benthopelagic | 3.6 SL | 3.2 | native | |
| Badis pancharatnaensis | Badidae | benthopelagic | 4.6 SL | 3.2 | native | |
| Bangana dero | Kalabans | Cyprinidae | benthopelagic | 75.0 TL | 2.0 | native |
| Barilius vagra | Danionidae | benthopelagic | 15.6 TL | 3.3 | native | |
| Batasio fasciolatus | Bagridae | demersal | 7.1 SL | 3.3 | native | |
| Batasio spilurus | Bagridae | demersal | 4.2 SL | 3.2 | native | |
| Batasio tengana | Bagridae | benthopelagic | 9.0 TL | 3.3 | native | |
| Botia dario | Bengal loach | Botiidae | demersal | 15.1 TL | 3.2 | native |
| Botia rostrata | Gangetic loach | Botiidae | demersal | 25.0 NG | 3.2 | native |
| Cabdio morar | Morari | Danionidae | benthopelagic | 20.0 NG | 3.3 | native |
| Chaca chaca | Squarehead catfish | Chacidae | demersal | 20.0 TL | 4.2 | native |
| Chagunius chagunio | Chaguni | Cyprinidae | demersal | 50.0 TL | 2.8 | native |
| Channa barca | Barca snakehead | Channidae | benthopelagic | 105.0 TL | 4.2 | native |
| Channa melanostigma | Lohit snakehead | Channidae | benthopelagic | 14.3 SL | 3.6 | native |
| Channa pomanensis | Poma snakehead | Channidae | benthopelagic | 17.0 SL | 3.7 | native |
| Channa stewartii | Assamese snakehead | Channidae | benthopelagic | 29.7 TL | 3.8 | native |
| Chitala chitala | Clown knifefish | Notopteridae | demersal | 122.0 SL | 3.7 | native |
| Conta pectinata | Sisoridae | demersal | 4.9 SL | 3.1 | native | |
| Creteuchiloglanis kamengensis | Sisoridae | benthopelagic | 19.8 SL | 3.2 | native | |
| Creteuchiloglanis payjab | Sisoridae | benthopelagic | 15.6 SL | 3.2 | native | |
| Danio assamila | Danionidae | benthopelagic | 6.8 SL | 3.0 | native | |
| Danio dangila | Danionidae | benthopelagic | 15.0 TL | 3.0 | native | |
| Danio meghalayensis | Danionidae | benthopelagic | 5.1 SL | 3.0 | native | |
| Danionella priapus | Danionidae | benthopelagic | 1.9 TL | 3.0 | native | |
| Devario acuticephala | Danionidae | benthopelagic | 4.0 SL | 3.0 | native | |
| Erethistes pusillus | Sisoridae | demersal | 4.2 SL | 3.1 | native | |
| Erethistoides infuscatus | Sisoridae | demersal | 4.5 SL | 3.1 | native | |
| Euchiloglanis kishinouyei | Sisoridae | demersal | 19.3 NG | 3.2 | native | |
| Exostoma labiatum | Burmese bat catfish | Sisoridae | demersal | 11.0 TL | 3.1 | native |
| Exostoma tenuicaudatum | Sisoridae | demersal | 10.8 SL | 3.2 | native | |
| Gagata cenia | Indian gagata | Sisoridae | demersal | 15.0 SL | 3.2 | native |
| Gagata gagata | Gangetic gagata | Sisoridae | demersal | 31.0 TL | 3.3 | native |
| Gagata youssoufi | Sisoridae | benthopelagic | 8.9 TL | 3.2 | native | |
| Garra arunachalensis | Cyprinidae | benthopelagic | 12.6 SL | 2.0 | native | |
| Garra arupi | Cyprinidae | benthopelagic | 7.2 SL | 2.2 | native | |
| Garra birostris | Cyprinidae | benthopelagic | 10.2 SL | 2.1 | native | |
| Garra chathensis | Cyprinidae | benthopelagic | 2.1 | native | ||
| Garra jaldhakaensis | Cyprinidae | benthopelagic | 8.4 SL | 2.2 | native | |
| Garra kempi | Cyprinidae | benthopelagic | 11.3 SL | 2.0 | native | |
| Garra langlungensis | Cyprinidae | benthopelagic | 7.0 SL | 2.3 | native | |
| Garra lissorhynchus | Cyprinidae | benthopelagic | 9.2 SL | 2.1 | native | |
| Garra magnacavus | Cyprinidae | benthopelagic | 8.2 SL | 2.2 | native | |
| Garra magnidiscus | Cyprinidae | benthopelagic | 2.1 | native | ||
| Garra quadratirostris | Cyprinidae | benthopelagic | 10.8 SL | 2.0 | native | |
| Garra ranganensis | Cyprinidae | benthopelagic | 12.2 SL | 2.0 | native | |
| Garra tamangi | Cyprinidae | benthopelagic | 15.4 SL | 2.0 | native | |
| Garra tezuensis | Cyprinidae | benthopelagic | 6.5 SL | 2.3 | native | |
| Glyptosternon maculatum | Sisoridae | demersal | 32.0 TL | 3.2 | native | |
| Glyptothorax annandalei | Sisoridae | benthopelagic | 11.5 TL | 3.2 | native | |
| Glyptothorax dihangensis | Sisoridae | benthopelagic | 9.4 SL | 3.2 | native | |
| Glyptothorax gracilis | Sisoridae | benthopelagic | 12.7 SL | 3.2 | native | |
| Glyptothorax heokheei | Sisoridae | benthopelagic | 15.2 SL | 3.2 | native | |
| Glyptothorax mibangi | Sisoridae | demersal | 8.4 SL | 3.2 | native | |
| Glyptothorax radiolus | Sisoridae | demersal | 11.9 SL | 3.2 | native | |
| Glyptothorax rupiri | Sisoridae | benthopelagic | 16.1 SL | 3.2 | native | |
| Glyptothorax siangensis | Sisoridae | benthopelagic | 12.5 SL | 3.2 | native | |
| Glyptothorax striatus | Sisoridae | benthopelagic | 21.5 | 3.2 | native | |
| Gogangra laevis | Sisoridae | demersal | 8.0 SL | 3.2 | native | |
| Gogangra viridescens | Sisoridae | demersal | 10.8 TL | 3.2 | native | |
| Gonialosa manmina | Ganges river gizzard shad | Dorosomatidae | pelagic | 14.9 TL | 3.1 | native |
| Gudusia chapra | Indian river shad | Dorosomatidae | pelagic | 20.0 TL | 2.3 | native |
| Gymnostomus ariza | Reba | Cyprinidae | benthopelagic | 30.0 SL | 2.7 | native |
| Hemibagrus menoda | Menoda catfish | Bagridae | demersal | 45.0 TL | 3.5 | native |
| Labeo pangusia | Cyprinidae | benthopelagic | 90.0 TL | 2.0 | native | |
| Laubuka brahmaputraensis | Danionidae | benthopelagic | 3.4 SL | 3.1 | native | |
| Lepidocephalichthys annandalei | Annandale loach | Cobitidae | demersal | 9.0 TL | 2.8 | native |
| Lepidocephalichthys goalparensis | Cobitidae | demersal | 7.0 TL | 2.8 | native | |
| Lepidocephalichthys guntea | Guntea loach | Cobitidae | demersal | 15.0 TL | 2.7 | native |
| Macrognathus aral | One-stripe spinyeel | Mastacembelidae | benthopelagic | 63.5 TL | 3.1 | native |
| Minimugil cascasia | Yellowtail mullet | Mugilidae | demersal | 12.5 TL | 2.7 | native |
| Monopterus cuchia | Cuchia | Synbranchidae | demersal | 79.7 TL | 3.8 | native |
| Mustura daral | Nemacheilidae | demersal | 7.0 SL | 2.8 | native | |
| Mustura dikrongensis | Nemacheilidae | demersal | 5.2 SL | 2.8 | native | |
| Mustura harkishorei | Nemacheilidae | demersal | 5.3 SL | 2.8 | native | |
| Mustura prashadi | Nemacheilidae | benthopelagic | 6.5 SL | 2.8 | native | |
| Mustura subhashi | Nemacheilidae | demersal | 2.8 | native | ||
| Mustura tuivaiensis | Nemacheilidae | demersal | 4.6 SL | 2.8 | native | |
| Mystus dibrugarensis | Bagridae | demersal | 3.3 | native | ||
| Nangra assamensis | Koshi Nangra | Sisoridae | demersal | 10.5 TL | 3.2 | native |
| Nemacheilus pulchellus | Nemacheilidae | demersal | 4.6 SL | 2.8 | endemic | |
| Nemacheilus subfusca | Nemacheilidae | benthopelagic | 7.4 SL | 2.7 | native | |
| Neoeucirrhichthys maydelli | Goalpara loach | Cobitidae | demersal | 3.6 SL | 3.1 | native |
| Neolissochilus hexagonolepis | Copper mahseer | Cyprinidae | benthopelagic | 120.0 TL | 3.0 | native |
| Neonoemacheilus assamensis | Nemacheilidae | demersal | 4.3 SL | 2.8 | native | |
| Neonoemacheilus labeosus | Nemacheilidae | demersal | 10.0 NG | 2.8 | native | |
| Notopterus notopterus | Bronze featherback | Notopteridae | demersal | 60.0 SL | 3.6 | native |
| Ompok bimaculatus | Butter catfish | Siluridae | demersal | 45.0 SL | 3.9 | native |
| Ompok pabda | Pabdah catfish | Siluridae | demersal | 30.0 TL | 3.8 | native |
| Opsarius barna | Danionidae | benthopelagic | 15.0 TL | 3.4 | native | |
| Opsarius maculatus | Danionidae | benthopelagic | 5.9 SL | 3.2 | native | |
| Opsarius shacra | Danionidae | benthopelagic | 14.0 TL | 3.4 | native | |
| Opsarius tileo | Danionidae | benthopelagic | 30.5 SL | 3.5 | native | |
| Oreoglanis pangenensis | Sisoridae | benthopelagic | 7.7 SL | 3.1 | endemic | |
| Osteobrama cotio | Cyprinidae | benthopelagic | 15.0 TL | 2.9 | native | |
| Otolithoides pama | Pama croaker | Sciaenidae | benthopelagic | 160.0 TL | 3.9 | native |
| Oxygymnocypris stewartii | Cyprinidae | benthopelagic | 67.6 TL | 2.9 | native | |
| Paracanthocobitis abutwebi | Nemacheilidae | demersal | 5.3 SL | 2.8 | native | |
| Paracanthocobitis zonalternans | Nemacheilidae | demersal | 12.2 TL | 2.7 | native | |
| Parachiloglanis hodgarti | Torrent catfish | Sisoridae | demersal | 6.6 SL | 3.1 | native |
| Parambassis bistigmata | Ambassidae | benthopelagic | 4.1 SL | 3.3 | native | |
| Parambassis lala | Highfin glassy perchlet | Ambassidae | demersal | 4.0 TL | 3.2 | native |
| Pethia arunachalensis | Arunachal barb | Cyprinidae | benthopelagic | 3.4 SL | 2.8 | native |
| Pethia aurea | Cyprinidae | benthopelagic | 2.4 SL | 2.9 | native | |
| Pethia canius | Cyprinidae | benthopelagic | 3.0 SL | 2.8 | native | |
| Pethia conchonius | Rosy barb | Cyprinidae | benthopelagic | 14.0 TL | 2.9 | native |
| Pethia dikhuensis | Cyprinidae | benthopelagic | 4.6 SL | 2.7 | native | |
| Pethia gelius | Golden barb | Cyprinidae | benthopelagic | 5.1 TL | 3.3 | native |
| Pethia guganio | Glass-barb | Cyprinidae | benthopelagic | 8.0 TL | 2.5 | native |
| Pethia ornata | Cyprinidae | benthopelagic | 4.3 TL | 2.8 | native | |
| Pethia phutunio | Spottedsail barb | Cyprinidae | benthopelagic | 3.9 TL | 2.9 | native |
| Pethia shalynius | Shalyni barb | Cyprinidae | benthopelagic | 6.0 TL | 2.7 | native |
| Pethia ticto | Ticto barb | Cyprinidae | benthopelagic | 12.5 TL | 2.2 | native |
| Physoschistura elongata | Nemacheilidae | benthopelagic | 5.0 TL | 2.9 | native | |
| Pristis microdon | Largetooth sawfish | Pristidae | demersal | 700.0 TL | 3.8 | native |
| Pseudecheneis sirenica | Sisoridae | demersal | 3.2 | native | ||
| Pseudecheneis sulcata | Sucker throat catfish | Sisoridae | demersal | 20.0 TL | 3.2 | native |
| Pseudolaguvia ferruginea | Sisoridae | demersal | 2.9 SL | 3.1 | native | |
| Pseudolaguvia foveolata | Sisoridae | demersal | 3.0 SL | 3.1 | native | |
| Pseudolaguvia muricata | Sisoridae | demersal | 2.6 SL | 3.0 | native | |
| Pseudolaguvia shawi | Sisoridae | benthopelagic | 3.8 TL | 3.1 | native | |
| Pseudolaguvia viriosa | Sisoridae | demersal | 2.7 SL | 3.0 | native | |
| Psilorhynchus arunachalensis | Psilorhynchidae | benthopelagic | 2.9 | native | ||
| Psilorhynchus homaloptera | Torrent stone carp | Psilorhynchidae | demersal | 9.4 SL | 2.8 | native |
| Psilorhynchus nudithoracicus | Rainbow minnow | Psilorhynchidae | demersal | 8.4 SL | 2.9 | native |
| Pterocryptis barakensis | Siluridae | demersal | 3.7 | native | ||
| Pterygoplichthys pardalis | Amazon sailfin catfish | Loricariidae | demersal | 57.8 TL | 2.0 | introduced |
| Ptychobarbus dipogon | Cyprinidae | benthopelagic | 64.4 TL | 2.9 | native | |
| Rama rama | Bagridae | demersal | 3.5 | native | ||
| Salmostoma bacaila | Large razorbelly minnow | Danionidae | benthopelagic | 18.0 TL | 3.2 | native |
| Salmostoma phulo | Finescale razorbelly minnow | Danionidae | benthopelagic | 12.0 TL | 3.2 | native |
| Salmostoma sardinella | Sardinella razorbelly minnow | Danionidae | benthopelagic | 15.0 TL | 3.2 | native |
| Schistura beavani | Creek loach | Nemacheilidae | benthopelagic | 10.2 TL | 3.0 | native |
| Schistura chindwinica | Nemacheilidae | benthopelagic | 6.5 SL | 3.0 | native | |
| Schistura manipurensis | Nemacheilidae | benthopelagic | 8.4 TL | 3.0 | native | |
| Schistura minuta | Nemacheilidae | demersal | 4.3 TL | 3.0 | native | |
| Schistura nagaensis | Nemacheilidae | benthopelagic | 5.9 SL | 3.0 | endemic | |
| Schistura reticulofasciata | Nemacheilidae | benthopelagic | 6.1 TL | 3.0 | endemic | |
| Schistura tigrina | Nemacheilidae | demersal | 9.4 SL | 3.0 | native | |
| Schizopygopsis younghusbandi | Cyprinidae | benthopelagic | 49.6 TL | 2.9 | native | |
| Schizothorax macropogon | Cyprinidae | benthopelagic | 53.8 TL | 2.5 | native | |
| Schizothorax molesworthi | Blunt- nosed snowtrout | Cyprinidae | benthopelagic | 21.0 TL | 2.6 | native |
| Schizothorax oconnori | Cyprinidae | benthopelagic | 59.6 TL | 2.5 | native | |
| Schizothorax progastus | Dinnawah snowtrout | Cyprinidae | benthopelagic | 50.0 TL | 2.9 | native |
| Schizothorax waltoni | Cyprinidae | benthopelagic | 63.4 TL | 2.5 | native | |
| Sisor barakensis | Sisoridae | demersal | 3.2 | native | ||
| Sisor chennuah | Sisoridae | demersal | 9.8 SL | 3.2 | native | |
| Sisor rabdophorus | Sisoridae | demersal | 18.0 SL | 3.3 | native | |
| Sperata aor | Long-whiskered catfish | Bagridae | demersal | 180.0 TL | 3.6 | native |
| Sperata seenghala | Giant river-catfish | Bagridae | demersal | 150.0 TL | 3.8 | native |
| Systomus clavatus | Stedman barb | Cyprinidae | benthopelagic | 24.0 TL | 2.9 | native |
| Tariqilabeo latius | Gangetic latia | Cyprinidae | benthopelagic | 17.9 TL | 2.3 | native |
| Tor putitora | Putitor mahseer | Cyprinidae | benthopelagic | 275.0 TL | 2.9 | native |
| Tor tor | Tor barb | Cyprinidae | benthopelagic | 200.0 TL | 2.6 | native |
| Triplophysa microps | Nemacheilidae | benthopelagic | 10.7 SL | 3.1 | native | |
| Triplophysa stenura | Nemacheilidae | benthopelagic | 13.8 SL | 3.1 | native | |
| Triplophysa stewarti | Nemacheilidae | benthopelagic | 20.8 SL | 3.1 | native | |
| Triplophysa tibetana | Nemacheilidae | benthopelagic | 13.9 SL | 3.1 | endemic | |
| Xenentodon cancila | Freshwater garfish | Belonidae | pelagic-neritic | 40.0 TL | 3.9 | native |