Shahzada Qusai Vajihuddin is the sixth son of His Holiness Syedna Mohammed Burhanuddin and brother of Syedna Mufaddal Saifuddin.

Shahzada Vajihuddin has a leading role in MSB Educational Institutes, a chain of 25 schools spanning the Indian subcontinent, the Middle East and East Africa. 

Shahzada Vajihuddin is also the head of the Department of Healthcare and Medical Facilities, which provides a platform for doctors and medical professionals from the community, with regional associations established in the UK, USA, UAE and Kuwait. The department and its affiliated associations raise awareness within the community regarding public health and conduct free health checkup and vaccination camps throughout the world. Shahzada Vajihuddin’s keenness and concern for the health of community members drive their various year-round health and fitness initiatives and medical camps. 

Shahzada Vajihuddin also oversees the Departments of Hajj and Umrah and Religious and Cultural Sites.