Dr Lakshyaraj Singh Mewar was born to Sriji Maharaj Arvind Singh Mewar and his wife Rank Vijayraj Kumari Mewar. He is an agnatic grandson of Colonel Maharana Bhagwat Singh Mewar. His mother is the granddaughter of Maharao Vijayarajaji, the Maharao of Kutch.
He works as the executive director of HRH Group of Hotels. He also looks after the day-to-day affairs of Maharana Mewar Public School and Maharana Mewar Vidya Mandir.
Following the death of his father, Arvind Singh Mewar, on 16 March 2025, the City Palace, Udaipur, announced that his Gaddi Utsav (coronation ceremony) as the 77th Maharana of the now-defunct Kingdom of Mewar, along with the Rang ka Dastur (ceremony of changing the turban to a colored one), would be held on 2 April 2025.
The Maharana is the head of the Sisodia clan of Rajputs and holds the highest rank among all Rajput princes. The Maharana is also regarded as the Diwan or hereditary high priest of Shree Eklingji, the tutelary deity of the House of Mewar.