Determined by my search, the general HDB hotline is 1800-225-5432 . This is a Branch Business office Assistance Line that operates on weekdays from eight:00 AM to five:00 PM. Also, there are other Get in touch with numbers for particular solutions: * HDB Primary Line: 6490-1111 (for basic enquiries, weekdays https://hdbtowncouncilhotline210212221.dreamyblogs.com/37572001/hdb-town-council-hotline-210-22