Among the two options, IIT Bhubaneswar CSE dual degree and BITS Goa CS, the latter seems to be a more promising option. Let me justify my stance in a better way.
The IIT Bhubaneswar dual degree has many flaws like
Financially too IIT Bhubaneswar dual degree is a poor decision. You will waste one year earning nothing and be paying extra fees all the more. BITS Goa CS m is better in almost all aspects like its alumni, start-up culture, placements, and campus facilities. So, I will recommend you choose BITS Goa over IIT Bhubaneswar.