You have got AIR 48,718 with 94.54 percentile that's not that bad score to be honest that is good score.
Now talking about your college which will you get. You won't be getting CS in IIIT bhagalpur, IIIT Una as their cutoff is higher then your rank IIIT Bhagalpur closing rank was 25963 for open catagory whereas closing rank for IIIT Una was 23500.
In my opinion you can go for NIT uttrakhand if get allotted we should go with that as it's cutoff is near to your rank.
Talking about Dirubhai Ambani institute of information and communication technology it is private self-financed university so if you can afford it's fees which 86,000/annum + 22,000/annum hostel fees it will be good option but you should go for this college after you are unable to get in the above mentioned college.
Most important is if you are getting any other branches also should go for it in IIIT Bhagalpur, IIIT una and NIT uttrakhand as you can change it after 2nd sem in most of institute and after 1st sem in some institute.
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