Hello Srijan.Based  on your rank in NIMCET Exam General Category You can get a seat in NIT Jamshedpur or NIT Durgapur or NIT Kurukshetra or even NIT Raipur.Because the cut off these colleges generally range around 500.
All the best.
Please go through the following link for more details.

https://www.sarvgyan.com/articles/nimcet-cut-off

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