What is the highest package offered to a civil engineering student from NIT TRICHY?

I am assuming that you are asking about core civil job profiles. According to my friend at NIT Trichy the placement record for the Civil Engineering branch is quite good. Here is the placement trend for the branch. 

According to the placement highlights of the past few years for Civil Engineering the highest CTC offered by the recruiting companies is around 17 LPA. During the placement drive 2020, the average package offered was INR 6 LPA.

More job offers are made to the civil engineers from companies such as Oil and other related companies. The salary package offered by a few conglomerates like L&T varies from INR 6.2 LPA for IITians, INR 5.11 LPA for NITians, to INR 3.6 for Local/Private Colleges. This is the general trend. It varies depending on the academic year.