Minervarya teraiensis
Habitat
Open grassland, usually near permanent pools and streams
Range
Southern Nepal, Sikkim, north-eastern India, and south-eastern and central Bangladesh; recently reported from Bhutan
The Terai cricket frog, Minervarya teraiensis, is a frog of the family Dicroglossidae first described by Alain Dubois in 1984 as Rana teraiensis; it is also listed as Fejervarya teraiensis. It lives in open grassland, usually near permanent pools and streams, in southern Nepal, Sikkim, north-eastern India and Bangladesh, and has recently been reported from Bhutan (Wikipedia, general species account).
The source gives no size, appearance or breeding detail (Wikipedia, general species account).