What is the rank of M from the top as per given designation order?

1. The one who is a Operating wears Orange trouser. 2. The one who wears Pink trouser is three ranks higher than the one who wears Orange trouser. 3. R is CEO and wears Beige color trouser. SM wears Blue trouser. 4. O, whose designation is higher than that of P and he wears Black trouser. Q is 2 ranks lower than R. 5. The one having 3rd lowest designation wears Brown trouser. Neither M nor N wears Brown trouser. 6. S does not belong to the top three ranks. The trouser worn by S is of Grey color. So, Q must be the HOD of the bank. Also, the one who is AM wears Brown color trouser. Now, S must be the workers as O wears Black trouser and O’s rank is higher than that of P so, P must be the AM. Either M or N works as SM or Operating. The final arrangement is as follows: