Section 183(j) in The Indian Post Office Rules, 1933
(j)The Director of Agriculture in the State of Bombay and Officer-in-charge of the various research and other schemes conducted under the supervision of the Director of Agriculture from funds placed at his disposal by the Trustees of the Sir Sasoon David Trust Fund, provided that the articles posted by them relate solely to the public business of the schemes, and also the Chairman of the Board of the Sir Sasoon David Trust Fund, Bombay, provided that the articles posted by him relate solely to the business of the Board.
