The range of the opening and closing rank for the KNIT in the previous year's was around 32-56, opening and closing rank. Through reservation you have chances and you can try your luck but there are other good colleges also whre you can take the admission and go with the course. I am providing you the link where you can find out the cutoff marks for previous years branchwise and institute wise so that you will get the help in admissions. Also you can use the college predictore by career360 for the idea of having the institute mentioned above.

https://collegedunia.com/exams/upsee/cutoff