Answer: Lehna
Notes: Guru Nanak chose disciple Lehna as successor, naming him Guru Angad, bypassing his sons. Guru Angad became the second Sikh Guru, introduced the Gurmukhi script, and strengthened Sikh institutions like the langar (community kitchen).
📌 Question Number: 100 in Medieval Punjab - Sikh Gurus and Sikh Religion in the above course in App.