Depending on my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Office Services Line that operates on weekdays from 8:00 AM to 5:00 PM.In addition, you can find other Get hold of figures for precise expert services:* HDB Most important Line: 6490-1111 (for typical enquiries, weekdays eight:thirty AM - 5:00 PM)* Crucia