The original Riki Tikki Tavi by Rudyard Kipling was a short story, part of Kipling's "Jungle Book" stories. The pop artist Donovan also wrote a song titled "Riki Tiki Tavi" on his album "Open Road". The original story by Kipling is often included in collections of other short stories but it also has been published as a book in its own right.
The short story Rikki-tikki-tavi would fit into the genre of childrens adventure stories.
it is realistic fiction