Geylang is also a red-light district of Singapore. Thousands of Asian prostitutes mostly from other countries like Thailand, Indonesia, China and Malaysia work in .brGeylang is also a red-light district of Singapore. Thousands of Asian prostitutes mostly from other countries like Thailand, Indonesia, China and Malaysia work in .brThousands of Asian prostitutes mostly from other countries like Thailand, Indonesia, China and Malaysia work in Geylang, As many as a dozen girls work out of .brGeylang is also a red-light district of Singapore. Thousands of Asian prostitutes mostly from other countries like Thailand, Indonesia, China and Malaysia work in .