Based upon my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Business Service Line that operates on weekdays from 8:00 AM to five:00 PM. Additionally, you'll find other Speak to figures for distinct companies: * HDB Key Line: 6490-1111 (for normal enquiries, weekdays eight:30 AM https://hdbtowncouncilhotline210245444.kylieblog.com/37779862/hdb-town-council-hotline-210-22