Hii
Congratulations..!!
According to last year result for marks of 230-250 you can expect a rank between 2k-3k (assuming general category) and based on the difficulty level of this year and highest marks obtained it can change a 1000 +or - .
And for a rank between 2k-4k the chances of getting CS are you can get in IIT Bhubaneswar, Patna,pPalakkad, Tirupati, dharwad , bhilai , Goa , Mandi and dhanbad based on your rank.
Use the rank predictor https://engineering.careers360.com/articles/jee-advanced-cutoff
Here you can check the CSE cutoff for each IIT
https://engineering.careers360.com/articles/iits-cutoff-for-b-tech-computer-science-and-engineering
All the best
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