Was the most trusted disciple of Mirza Ghulam Ahmad.
He was the student of Shah Abdul Ghani of the [ Deoband|http://en.wikipedia.org/wiki/Deobandi] school. According to the school,
"After he completed his studios, Shah Sahib told him: "Mian Nuruddin! Books you have already finished; now learn something about remembering Allah". He replied "Sir! I have read the Quran, l have read the Hadith. What's remembrance of Allah besides this?" "Nuruddin! You must have estimated from my lectures on Hadith", said Shah Abdul Ghani, "that l transform the traditional into the rational by the practice of remembering Allah this rational will become perceptible". http://www.darululoom-deoband.com/english/aboutdarululoom/school_of_thought.htm
An apothecary by profession, he was from Bhera and was in the employ of the Raja of Kashmir when he moved to Qadian to be with Mirza Ghulam Ahmad, and was his trusted advisor, doctor and friend.
In 1908, he became the head of the Ahmadiyya: according to the Qadiani narration - as the first Khalifa, and according to the Lahori, as the head of the Sadr Anjuman Ahmadiyya, the governing body that Mirza Ghulam Ahmad had left as his successor.
He was also the claimant of many supernatural experiences, although he never claimed direct divine revelation (Ilhaam). His administration was marked with internal jockeying for position, a severe reduction in Ahmadiyya numbers and revenue.
In 1914, he died from complications suffered as the result of a fall from a horse. His death led to the first Organisations in the Ahmadiyya.