B.Arch Eligibility

Open Seats: Admission to 30 seats of the program will take place through the ACPC (Admission Committee for Professional Courses) of the Government of Gujarat. For these seats, the candidates need to follow the admission process carried out by the ACPC
Management/NRI Seats: Admission to 10 Seats (Management and NRI/NRI sponsored seats) are offered by the Navrachana University as per the guidelines of ACPC.

Please let me know your entrance exams name.

As per your score there are chances in 60-40 ratio.

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Dear Candidate,
DIT University take students on basis of JEE Rank & class 12th Boards Merit. But, in JEE Mains, CRL rank will be considered, not the category of state rank. Else, our first counselling for engineering is on 9th June & 10th of June. So, as you are eligible candidate, and if you are interested, then register online till tomorrow i.e. 7th June through our website link https://applications.dituniversity.edu.in/

To be eligible for B.Arch, you should score minimum 50% in class 12th with mathematics as a compulsory subject. Also, to gain admission in this course, you'll have to appear for National Aptitude Test in Architecture NATA conducted by the Council of Architecture, and the score for the same will be taken into consideration for admission.

Well you are scoring 139 marks, it means according to last year's statistics your AIR will be around 33k. With this rank forget about any good in top NITs but you can get low-level NITs such as NIT Srinagar, NIT Uttrakhand, lower branches in NIT Hamirpur, NIT Jalandhar.
If you are CSE or ECE aspirant then you can try in new IITs which are running under NITs such as IIIT Una, IIIT Ranchi, IIIT Naya Raipur, IIIT Surat, IIIT Bhopal in these colleges you will get these branches but don't lose hope till last round.
You can try for civil engineering in PEC.
All the best

It is tough to get admission in NIT but don't lose hope.
Maybe there is a certain downfall this year in the cutoff.
Do like if the answer is helpful.

Chances are less of getting NIT, Rourkela but you may get any other lower NIT.