Determined by my research, the overall HDB hotline is 1800-225-5432 . It's really a Department Office Support Line that operates on weekdays from 8:00 AM to 5:00 PM. Moreover, you will discover other contact quantities for specific services: * HDB Primary Line: 6490-1111 (for common enquiries, weekdays 8:thirty AM - https://gracec086zjs5.eedblog.com/profile