The Office of the Registrar General and Census Commissioner has made available the national toll-free helpline number 1855 for the Census 2027. Overview of the Census Helpline Number 1855 Dial 1855 It provides guidance on the house listing and Housing Census in regional languages and English. The service aims to simplify participation, ensure clarity, and support citizens in contributing effectively to this crucial national exercise. The Helpline is funcational between 10:00 AM and 6:00 PM. For any queries, citizens can refer to the information available on the Self Enumeration portal or contact the helpline number 1855