Sidi wa sanadi Hazrat Moulana Mohammad Taqi Usmani sahib db said,

“My grandfather Hazrat Moulana Yaseen sahib ra (a senior teacher at Darul Uloom, Deoband) used to tell that I have seen the phase of Darul Uloom when all the staff, from the doorkeeper-attendant to the principal were, sahib-e-nisbet (awliya-having the strong permenant relationship with Allah swt).”

Also
” The tareekh-e-tasees (the date of foundation) of Darul Uloom, Deoband (calculated by ‘abjad’ numerical values) has been ryhmed as:
‘dar madrassa khanqah deedayem’.
That means in this school we saw a khanqah.