Since your aggregate in BE is 83%,you will satisfy the minimum eligibilty criterion(50 %) and you will subjected to shortlisting process.For candidates with work experience of two years or more TAPMI follows profile-based shortlisting. Profile considered for shortlisting consists of valid CAT/ XAT/ GMAT scores (whichever is higher), academic profile (10th, 12th, Graduation, backlogs during graduation etc.), work experience (type of company, total experience, etc.), extra-curricular achievements if any.For more clarity,you can visit the below given website

https://www.careers360.com/question-what-is-nmat-cut-off-at-tapmi