Depending on my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Office Support Line that operates on weekdays from 8:00 AM to 5:00 PM.Furthermore, you can find other Call quantities for unique products and services:* HDB Main Line: 6490-1111 (for general enquiries, weekdays 8:thirty AM - five:00 PM)* Vital Servicing P… Read More