"Tuku, a little mongoose that had haunted Sita's courtyard"

Indian Gray Mongoose
Creative Commons Attribution Share AlikeIndian Gray Mongoose - Credit: J.M.Garg
The mongoose is a small carnivorous animal found mainly in southern Asia, southern Europe and Africa.  There are over 30 species of mongoose ranging in size from 1-4 feet long.  Some of them - such as Tuku, Ash's mongoose in The Far Pavilions, can be tamed and trained.  We are not told which species Tuku belongs to, but the picture shows an Indian Gray Mongoose (Herpestes edwardsii).