Based upon my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Business Services 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 Major Line: 6490-1111 (for normal enquiries, weekdays 8:30 AM https://lisai543xma9.wikidank.com/user