Who is chuchundra in rikki tikki tavi?

Chuchundra is a timid, frightened muskrat in Rudyard Kipling's 'Rikki-Tikki-Tavi.' He lives in constant fear, rarely venturing from the room's center. Despite his profound cowardice, Chuchundra indirectly aids Rikki-Tikki-Tavi by providing nervous observations about the dangerous cobras, Nag and Nagaina. This fearful intelligence proves crucial for the mongoose's protective mission.