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 . 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 . Thousands 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 . 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 .