While serving as teacher in the school, she came into contact with Amalprava Das, a devout Gandhian, whose father had donated his Sarania Hills property for setting up the ashram.
As requested by Das, Chowdhary joined the Ashram and helped run the Gram Sevika Vidyalaya and manage the Assam Branch of KGNMT She became the office secretary of the Trust branch and she simultaneously worked as a teacher at the TC School.
Shakuntala Chowdhary succeeded Das as KGNMT's head in 1955 and continued in that position for 20 years witnessing many developments like the Chinese aggression, the Tibetan refugee crisis, the language stir of 1960.
[7] She was an active participant in the year-and-half-long Padayatra undertaken by Vinoba Bhave in Assam during the last leg of his Bhoodan movement.
[citation needed] At Vinoba Bhave's instance, who was interested in promoting Devanagari script among different linguistic groups, Shakuntala Choudhary started a monthly magazine "Asomiya Vishwa Nagari" in Devanagari script which she edited for many years.