What rank do I need to get into the NITIE with a course in mechanical engineering under the general category?

One of my friends from NITIE mentions that for the mechanical engineering course under the general category, there are different requirements of GATE score by the college for the admission process. 

• For the general category, for any branch, the score of GATE is around 650. 
• There is no branch preference given over any other branches.
• There are different cut-offs for every year and it depends on a lot of factors. 
• The factors include the average GATE scores of the students, the total no of received applications, and many others. 
• The last and final selection depends on factors such as the 10th aggregate, 12th aggregate, graduation aggregate, GATE score, group discussion, and personal interview. 
• There are different weights for every factor and after all the calculations with their respective weights are done, the final list is prepared.

The GATE score is quite difficult to say as there can be even a waiting list if there is a requirement for the same. Therefore, if a person gets the required minimum GATE score and performs well in the GD and PI round. Then there is a possibility of getting the call as the shifting in the waiting list is not predictable.