To get the cutoff details for engineering students under the ex-servicemen quota, we'll need to look at specific colleges and their admission processes.

For instance, in Tamil Nadu, the cutoff marks for ex-servicemen quota is 45, and you must have a minimum of 75% in 10+2.Some top colleges to consider under this quota include PSG College of Technology, College of Engineering, Guindy, and Thiagarajar College of Engineering, Madurai.

In terms of specific cutoff scores, it varies by college and branch. For example, the cutoff score for Computer Science and Engineering at SSN College of Engineering was around 170 for the MBC category.However, please note that cutoff scores can change from year to year based on factors like exam difficulty, number of students, and available seats.

To get the most accurate and up-to-date information, I recommend checking the official websites of the colleges you're interested in or contacting their admissions offices directly.