Correspondence from the National Tonnage Club of Farmers that refers to Swaminathan at IARI - (:unkn) unknown (My University, 2026)
From S.B. Pandya to C. Subramaniam on behalf of the National Tonnage Club of India with a note of appreciation for his contributions in developing the club and his tenure as Minister of Agriculture in general; also a letter on behalf of the National Tonnage Club appealing to the receiver to join the Club, aimed at farmers interested in growing high yielding dwarf Mexican wheat, that mentions Swaminathan.