Bhai Kahn Singh Nabha was a prominent Sikh scholar, writer, and poet born in 1861 in Punjab, India. He is best known for his contributions to Sikh literature and his efforts to promote the Punjabi language. His most notable work, the Mahan Kosh, is a comprehensive dictionary of the Punjabi language and Sikh terminology. In addition to his literary achievements, Bhai Kahn Singh was an advocate for social reform within the Sikh community. He played a significant role in the Singh Sabha Movement, which aimed to revive and promote Sikh identity and values during the British colonial period. His legacy continues to influence Punjabi literature and Sikh thought today.