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