Hello,
According to your rank in JEE mains, your general rank would be around 35k. You can get some newer NITs and GFTIs. As you are from EWS category, you can get some good branches, but for core branches like CSE, mechanical, EEE  you have very less chances. Also, you can get the benefit of home state quota to get some good branches till the last round and the final CSAB counselling.
You can practice more and try to improve your percentile in the jee mains in July. You can go for the JEE mains crash course by Careers 360.
Here's the link for that https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/careers360-jee-main-crash-course/amp&ved=2ahUKEwiw1bT92ZfqAhUKb30KHZ4iA08QFjAAegQIBhAB&usg=AOvVaw2qqSyBCop2N7ziMSe61Y3S&ampcf=1

Hope it helps

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