It has been recorded in Afghanistan, Bangladesh, India, Myanmar, Nepal and Pakistan.

It is one of the giants of its genus, growing a length of 150 cm.

[2] It inhabits rivers and estuaries, preferring muddy to clear water.

R. rita is an omnivorous catfish; the bulk of its diet consists of mollusks.

In addition, it feeds on small fishes, crustaceans, insects, as well as on decaying organic matter.