Yes, depending on your JEE Main rank, you can be admitted to NIT Agartala's 5-year BS+MS (Integrated MSc) Honours program. It falls under the JoSAA counselling process and is treated like any other UG program.
To have a real chance, you should have a rank of at least 70,000 to 1,50,000 if you are in the General category (this can vary somewhat depending on the round and specialty). Aim for 85–90+ or higher on a percentile basis. You can enter with a higher rank (i.e., more lenient cutoffs) if you fall into one of the OBC, SC, or ST categories.
Eligibility is passing 10+2 with Physics, Chemistry, and Maths/Biology. Appeared for JEE Main and hold a valid CRL rank.
Admission Process: Appear for JEE Main then Register for JoSAA counselling, Select NIT Agartala's BS+MS (Honours) course in your preferences, Wait for seat allotment as per your rank and preferences and when allotted, report and finish admission formalities.