Dear aspirant,
The total fees of B.tech course in most of the NITs is more or less same. The tuition fees of each and every NIT is same which is 62.5k per semester considering your family income is more than 5L per annum.
The total fees including the hostel and mess would be around 8.5L for both these colleges. It is quite possible may be a 20-40k difference may occur but it would be more or less same.
To get complete information about the fees you can check out the link given below-
https://www.careers360.com/university/national-institute-of-technology-rourkela/courses
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