Hi Buddy,
According to this article from careers360,
https://engineering.careers360.com/articles/iit-dhanbad-mtech-admission
Written test / interview is only mentioned for sponsored students only.
Events
Dates
Release of Application form for M.Tech admission at IIT (ISM) Dhanbad
Second week of March 2021
Opening of COAP portal for registration
Third week of March 2021
Last date of application submission
Third week of April 2021
Written Test or Interview (Sponsored candidates only)
Last week of June 2021
Commencement of COAP Counselling
May 2021
Candidate reporting at IIT (ISM) Dhanbad
July 2021
Commencement of course
By the last week of July 2021
(source : careers360)
So you don't need to worry about written test/interview.
I hope that will help
Thank you!
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