BAMU does not use the pointer system used in Pune University. The following are the engineering year down rules of BAMU.
For architecture, the rules are different and simple. All internals get cleared in colleges. Three subjects back in a year are permissible, but four backs in a year result in the year down. You will not be able to take any subjects from your previous alternate year.
Overall, the main thing to keep in mind is the third year. In the third year, even a single back can result in the year down. No such student gets promoted to the fourth year.