Tip!!! 2024 Stock. Zia Mohiuddin Dagar (14 March 1929 – 28 September 1990), (aka Ustad Zia Mohiuddin Dagar and popularly known as Z. M. Dagar), was a North Indian (Hindustani) classical musician, one of the 19th generation of Dagar family dhrupad musicians. He was largely responsible for the revival of the rudra vina as a solo concert instrument