"Although Urdu in form of Zuban-I Urdu-yi Mu'lla was already in use during the reign of Emperor Shajahan and referred to as Lashkari Zaban, Muhammed Shah made it popular among his people, declaring it to be his Court Language. In his respect, Lashkari or Urdu replaced Farsi or Persian, which was being used and understood by fewer and fewer individuals."