According to my search, the general HDB hotline is 1800-225-5432 . It's a Branch Business office Assistance Line that operates on weekdays from eight:00 AM to five:00 PM. Moreover, there are actually other Call quantities for unique products and services: * HDB Most important Line: 6490-1111 (for general enquiries, weekdays https://hdbtowncouncilhotline210211100.thenerdsblog.com/43082685/hdb-town-council-hotline-210-22