Kallang (/ k ɑː l ɑː ŋ /; Chinese: , Tamil: காலாங்) is a planning area and residential town located in the Central Region of Singapore.. Development of the town is centered around the Kallang River, the longest river in Singapore. Kallang Planning Area is bounded by Toa Payoh in the north, Geylang in the east, Marine Parade in the southeast, Marina East in the south, the ...