There are some determinants that help in the formation of GATE 2018 cutoff for IIT Madras which are – number of candidates who appeared in the exam, number of seats available for each of the programmes, difficulty level of the exam and previous year's cutoff trends.

Go through the below-provided link for previous year cutoff:-

https://engineering.careers360.com/articles/gate-cutoff-for-iit-madras

All the very best and good luck.

It depends in which Engineering you are looking for.