Hello,
With this JEE main rank you might get some lower branches in some newer NITs, IIITs and GFTIs. You have more chances of getting a seat in GFTIs with a decent branch. And also being from SC category you have a lot of advantage. So you might get core branches in GFTIs. But you will definitely not get a seat  in NIT Karnataka with any branches at all.
You can use the careers 360 Jee main college predictor for more info about which colleges you can get
https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/jee-main-college-predictor&ved=2ahUKEwiBxrGpl8niAhXOXSsKHRomD-wQFjACegQIAxAB&usg=AOvVaw1pTMu5LewXe0n3JPiA8V2U

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