Section 3(5)(ii) in The Plants, Fruits And Seeds (Regulation Of Import Into India) Order, 1989
(ii)All consignments of plants and seeds for sowing and propagation or planting shall be imported into India through land customs station, seaport, airport at Amritsar, Bombay, Calcutta, Delhi and Madras and such other entry points as may be specifically notified by the Central Government from time to time.