Sporadic research by Ramachandran on certain groups of antiquities at the National Museum revealed the importance of the objects and thus made the Museum well known. Only after the formation of the Section were more detailed studies of the antiquities of the Museum undertaken. Arachnologist and student of archaeology, Frederic Henry Gravely, collaborated with Ramachandran on the scientific basis for identifying the period of metal images between 1925-1935.
