Scientists have discovered the world’s largest known subterranean fish in a cave in Meghalaya.  

• It is nearly five times the mean length (8.5 cm) for all known subterranean fish to date.  
• It is closely related to a surface-dwelling fish known as the golden mahseer.  
• The cavefish lack pigmentation and their eyes are poorly developed or even non-existent. 

Source: The Hindu