V.D. Savarkar, Bhai Parmanand, and Dr. Shyama Prasad Mukherjee were prominent leaders and served as Presidents of the All India Hindu Mahasabha. M.R. Jayakar also served as President of the Hindu Mahasabha (e.g., in 1923). However, compared to the long and deep association of Savarkar, Parmanand, and Mukherjee with the core ideology and leadership of the Mahasabha, Jayakar had a broader political career that included association with the Swaraj Party and liberal politics, and his primary identity was perhaps less exclusively tied to the Mahasabha over the long term than the others. While technically a leader, the question likely seeks the one whose leadership role was less defining compared to the others listed.