See the website is showing about the highest package as a result its obvious that there is some kind of role of the college in placing a student with that much of package, Now Bennett University is one of the well known universities in India and if they are proclaiming this then it may not be fake. So the highest package thing as mentioned on the website isn't expectedly to be fake.

You consider the out of campus thing as a rumor.

To know more about Bennett University visit the link below:

https://www.careers360.com/university/bennett-university-greater-noida

I hope this answer helps. All the very best for your future endeavors!