Answer: Shri Chand and Lakhmi Das
Notes: Guru Nanak Dev Ji had two sons, Shri Chand, founder of Udasi sect, and Lakhmi Das. Both played different roles in Sikh history, with Shri Chand leading ascetic Udasi followers and Lakhmi Das focusing on family life. Neither son succeeded Guru Nanak as Sikh Guru.
