" P.S Can you believe it? !! India is the largest producer and exporter of celery seeds in the WORLD and we cant get a stick of decent celery nor can we get the oil, seeds or salt readily in the shops. I have been going around asking for Ajmud NOT Ajwain ...no luck."
That was from my post on Green Pea soup .
Update on search for celery seed: At last I have found a good substitute for celery seed in Radhuni at a grocery shop here. Nobody here knows it by the Hindi name Ajmud. It has a taste that is closest to celery and you need just a very tiny pinch as it has a strong flavour.
Radhuni is actually the dried fruit of Trachyspermum roxburgianum. Synonyms :Apium involucratum, Carum roxburghianum, Carum involucratum, Trachyspermum involucratum and is known in French as L'ajmud des Indiens, in Filipino as malungkoi or kanuikui, and in Thai as phakchi-lom.
Ref: The World Spice Plants, Seidemann Johannes