265786 - Dibrugarh



Added to meter mail at Digboi. BOC stands for the Burmah Oil Company, which was the parent of the Assam Oil Company, now part of India Oil. 

Similar handstamp, here from PATHSALA/ KAMRUP, 25 /12/71, and seen also from Digboi and Doom Dooma, Lakhimpur District.


Dimapur is the largest city in the State of Nagaland

Here is a much smaller handstamp, on a single cover from Gauhati, 10 April 1972. The sender, S.S. Deka, is presumably a philatelist, and perhaps the stamp came from his own collection!

 I do not know of a similar handstamp in use any nearer to Assam than Gujarat!