BALBIR SINGH (1894-1974) Dr. Balbir Singh is an eminent thinker and expositor of Sikh literature. He is a man of much learning, both of eastern and western philosophy, besides a teacher of botany. His essays are available in collections like Charan Hari Visthar (Detailed account of Charan Singh) about his father, Dr. Charan Singh whose contribution to Punjabi literature has been noticed.