Kohlrabi / German Tulip is a mild tender veggie suits almost any curry or saute preparations. This veggie is very popular in Kashmir, also known by the name Knol Khol in Southern regions.
Tamil ~ Nool Kol / Noolkul / Nukul / Nookul
Hindi ~ Ganth Gobhi
Telugu ~ Noolkol
Kannada ~ Navil Koos
Malayalam ~ Seemamullangi