Mirza Nasir-ud-Din Muḥammad Shah (born Roshan Akhtar; 7 August 1702 – 26 April 1748) was the thirteenth Mughal emperor from 1719 to 1748. He was son of Khujista Akhtar, the fourth son of Bahadur Shah I. After being chosen by the Sayyid Brothers of Barha, he ascended the throne at the young age of 18, under their strict supervision.
He later got rid of them with the help of Nizam-ul-Mulk, Asaf Jah I – Syed Hussain Ali Khan was murdered at Fatehpur Sikri in 1720 and Sayyid Hassan Ali Khan Barha was captured in battle in 1720 and fatally poisoned in 1722. Muhammad Shah was a great patron of the arts, including musical, cultural and administrative developments, he is thus often referred to as Muhammad Shah Rangila (lit. 'Muhammad Shah "the colourful"'). His pen-name was "Sadrang" and he is also sometimes referred to as "Bahadur Shah Rangila" after his grand father Bahadur Shah I.