Hello,
As you have mentioned that you have scored 23 marks in IIT Jam but it would be difficult to tell you exactly about the admission chances as cutoff vary every year depending on the various factors such as difficulty level of the exam, Number of candidates appeared for the exam, Performance of the candidates etc.
However you can check the previous year cutoff to take an Idea about the admission possibilities.
Https://university.careers360.com/articles/jam-cutoff
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