Based upon my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Business Service Line that operates on weekdays from eight:00 AM to five:00 PM. On top of that, you will find other Get in touch with numbers for particular solutions: * HDB Primary Line: 6490-1111 https://hdbtowncouncilhotline210299988.blogdemls.com/37064720/hdb-town-council-hotline-210-22