Determined by my lookup, the overall HDB hotline is 1800-225-5432 . It's really 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 certain companies: * HDB Major Line: 6490-1111 (for standard enquiries, weekdays 8:30 AM - https://tonya097cny8.salesmanwiki.com/user