See as per the academic calendar of NIT Agartala as available for the BTech 1st year students, there is 15 days of Winter Break and 1 month to 1.5month long summer break.

Now as due to the online education schedules, the pattern of academic planning have changed so there can be changes in the durations as well. But if it goes offline, then there's a good chance that you will get this long vacations.

To know more about NIT NAGALAND visit the link below:

https://www.careers360.com/university/national-institute-of-technology-nagaland

For official website of NIT NAGALAND visit the link below:

https://nitnagaland.ac.in/

I hope this answer helps. All the very best for your future endeavors!