The first of these was a mix of the sarod, veena and surbahar, developed in 1948 by Radhika Mohan Maitra. In 1949, Thakur Jaidev Singh, the then chief producer of All India Radio, named the instrument 'Mohan veena' after him. Pandit Maitra performed 22 national programs and several AIR recordings with the instrument before his death in 1981. These recordings are now in the public domain.
The second instrument is a modified archtopHawaiian guitar, created by Vishwa Mohan Bhatt, and is the instrument most commonly referred to by the name Mohan veena. This instrument has between 19 and 21 strings in total: three to four melody and four to five drone strings strung from the peghead, and twelve sympathetic strings strung to the tuners mounted on the side of the neck. A gourd is screwed into the back of the neck for improved sustain and resonance. It is held in the lap and played with a bar like a slide guitar.