Arjumand Banu Begum was married at the age of 19 , on 10 May 1612 , to Prince Khurram , known as Shah Jahan , who conferred upon her the title `` Mumtaz Mahal '' .
Arjumand Banu Begum ( also called Mumtaz Mahal ) was the third wife of Shah Jahan , the Mughal emperor .