For undergraduates, yes only JEE MAINS cause Btech is the only degree covered which takes admission through JEE Mains. After graduation, you can do MBA, MCA, PhD, Msc etc which do not require JEE Mains score. For more info, https://www.careers360.com/university/national-institute-of-technology-warangal/courses

Hello.

Yes, jee mains is the only way to get into nit Warangal.

For more information please check the link given below

https://www.nitw.ac.in/

Thanks