Hon'ble Minister of Communications, Railways and IT Shri Ashwini Vaishnaw Hon'ble Minister of Education, Skill Development & Entrepreneurship Shri Dharmendra Pradhan released 6 Special Covers on Unsung heroes of Odisha at Dak Bhawan, New Delhi.These Special Covers were released as a part of Azadi Ka Amrit Mahotsav Iconic week and National Postal Week 2021 on the occasion of Philately Day.