National Postal Day is celebrated on 10 October In India, the National Postal Day is celebrated annually on 10 October, as an extension of World Post Day, which is celebrated on 9 October. The Day aims to commemorate the role played by the Indian postal department for the past 150 years, which was founded in 1854 by Lord Dalhousie. Important takeaways for all competitive exams: Indian Post Secretary: Pradipta Kumar Bisoi. Indian Post Headquarters: New Delhi.