According to JEE MAINS predictor, you can expect an percentile ranging between 99.09-99.17. Now regarding LMNIIT admission, its dependent on your rank as well as the category you belongs to. Also the inflation in the marks can effect the probability. considering all the facts, I think you have a good probability of having a chance to get admitted in LNMIIT.

You can visit the link below for JEE MAINS 2021 Predictor:

I hope my answer helps. All the very best for your future endeavors!