The World Archery Federation officially informed Matsiewdor of her international appointment earlier this week.
Matsiewdor is the lone official from India in the archery event during the 2012 London Olympics which is slated to be held from July 27 to August 12, next year.
The 1985 Federation Cup champion, Matsiewdor is currently serving as Managing Director MeCOFED and as Officer on Special Duty for Cooperation department in the state.
Asked for her reaction, Matsiewdor told PTI, "I am excited to be chosen to represent the country and North-East and my people at home.
"The former Sports and Youth Affairs director had qualified as an international judge after appearing for two examinations at Seoul, South Korea in 1994.
Matsiewdor said, "Even though I have not been able to make it big in international arena as an archer but I am happy to have been able to do this as an official judge.
"Matsiewdor will be leaving for the London Olympics in the last week of July.
World Archery Federation had recognised Matsiewdor as one of its officials at the 2006 Doha Asian Games in Qatar and later at the Youth World Archery Championships at Ogden, Utah in 2009 besides other events in Bangladesh and other countries.