Kolkata, Dec 7: The 65th Mahaparinirwan Diwas of Bharat Ratna Dr. B. R. Ambedkar was observed with due solemnity at South Eastern Railway Headquarters, Garden Reach on Monday. Sanjay Kumar Mohanty, General Manager, South Eastern Railway paid floral tribute to the great patriot and Bharat Ratna Dr. B. R. Ambedkar while Anupam Sharma, Addl. General Manager, Zarina Firdausi, Principal Chief Personnel Officer, S. E. Railway along with officials of SC/ST Association also paid floral tribute to the Bharat Ratna Dr. B. R. Ambedkar. The Principal Head of the Departments, Senior Railway officers & staff of S.E. Railway Headquarters virtually paid tribute to the great Son of India Dr. B. R. Ambedkar. Mahaparinirwan Diwas of Bharat Ratna Dr. B. R. Ambedkar was also observed at four Divisional offices of Adra, Kharagpur, Chakradharpur and Ranchi.