

Introduction
G.B. Singh is the author of Gandhi Behind the Mask of Divinity, a biography of Mahatma Gandhi and Gandhi Under Cross Examination.
Career
A periodontist, Singh served in the U.S. Army as a colonel, one of a small number of Sikhs allowed to retain articles of faith, grandfathered in after a change in policy in 1984 forbidding soldiers from exhibiting their religion with "conspicuous" clothing or style of hair or beard. He was one of few Sikhs with a turban in the U.S. Army.
Although Singh has retired from the U.S. Army, he is still actively involved in supporting rights for future Sikhs to keep their article of faiths in the military.
In an interview Singh said that he became interested in studying Hinduism while a student of political science at the University of Oklahoma. In 1983, while watching the film Gandhi and after reading an article, The Gandhi Nobody Knows by Richard Grenier, he began his investigation into Gandhi's life, which led to the book Gandhi Behind the Mask of Divinity.
Selected writings
- Gandhi Behind the Mask of Divinity
- Gandhi Under Cross Examination
Personal life
He has three daughters and a son. His family currently resides in Colorado. One of his daughters, Serene Singh, is a Rhodes Scholar at the University of Oxford, the founder of the National Sikh Youth Program, and former Miss Teen Colorado.