Hello,
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I will provide you links below from Careers360 which will give you all the details about cut off system in all India ranking. You will have a proper idea about the queries you have.
JEE Advanced cut off
https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iits
In case I have mistaken about JEE, I will also give you NEET cutoff. As in the question, it is not clearly mentioned. So below is the link for NEET from Careers360
https://medicine.careers360.com/articles/neet-cut-off
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