Hello Ramsai,

You are eligible for JIPMER only if you are atleast 17. It depends on Category cut off of HSC, too. You should have Physics, Chemistry, Biology/Biotechnology in the last two years of study and English as a core subject. If you belong to UR Category, then you need 50 Percentile & if you belong to reserved category, you need to have 40 Percentile each in 10+2. 

If the above criteria is fulfilled then you are eligible for JIPMER.

Following link would help you more,

https://medicine.careers360.com/articles/jipmer-eligibility-criteria

Examining your NEET Rank, I think you could also make JIPMER!

BEST WISHES!