General Muhammad Ataul Gani Osmani (Bengali: মুহাম্মদ আতাউল গনি ওসমানী; 1 September 1918 – 16 February 1984), also known as Bangabir (the Hero of Bengal), was a Bengali military officer who was commander-in-chief of the Mukti Bahini during the 1971 Bangladesh Liberation War. Osmani's career spanned five decades, beginning with service in the British Indian Army in 1939. He fought in Burma during World War II, and served in the Pakistan Army until 1967. Osmani was appointed head of the Bengali armed resistance in 1971 by the Provisional Government of Bangladesh, and he is regarded as the founder of the Bangladesh Armed Forces. General Osmani retired in 1972.
Osmani entered politics in independent Bangladesh, serving as a member of parliament and cabinet minister in the government of Sheikh Mujibur Rahman. He resigned from the government after he opposed the creation of BAKSAL. Osmani is credited with introducing Kazi Nazrul Islam's "Chol Chol Chol" as Bangladesh's national march.
Usmani or Osmani or Othmani or Uthmani (Arabic: عثمانی) is a large community (Urdu: Biradari), found mainly in South Asia. The word Usmani or Osman (one and the same thing) is a surname. Osmani are found throughout South Asia, and have spread across Afghanistan, Pakistan, India and Bangladesh.
The Shaikh Usmani are a Urdu speaking community, and many are found among the Sindhis of Pakistan.They are of Arab origin. The word usmani derived from Hazrat Usman Ghani, the third caliph of Islam. One of the sub-continent's well known personalities Hazrat Maulana Shabir Ahmed Usmani (Sheikh ul Islam) belongs to this origin. They claim that they came in India with sufi fakir Hazrat Khwaja Muinuddin Chisti .
They claim to have Turk ancestry and are found mainly in North-West India and Pakistan.They include the descendants of Karlugh Turks who came with Taimur in 1398-1399.They live in Hazara region and Kashmir regions of Pakistan.They are Hindko speaking. The Turks who came with Khilji and Slave dynasties also use "usmani" as surname.