Hlw Amar,
You can refer to this link, it will clear your doubts.
https://university-careers360-com.cdn.ampproject.org/v/s/university.careers360.com/articles/jam-cutoff/amp?amp_js_v=a2&_gsa=1&usqp=mq331AQCCAE%3D#aoh=15508412421934&csi=1&referrer=https%3A%2F%2Fwww.google.com&_tf=From%20%251%24s&share=https%3A%2F%2Funiversity.careers360.com%2Farticles%2Fjam-cutoff
Good luck
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