After its inception, Sikhism grew as it gained converts among Hindus and Muslims in the Punjab region. In 1539, Guru Nanak chose his disciple "Lahiṇā" as a successor to the Guruship rather than either of his sons. Lahiṇā was named Guru Angad and became the second Guru of the Sikhs. Nanak conferred his choice at the town of Kartarpur on the banks of the river Ravi. Sri Chand, Guru Nanak's son was also a religious man, and continued his own commune of Sikhs. His followers came to be known as the Udasi Sikhs, the first parallel sect of Sikhism that formed in Sikh history. The Udasis believe that the Guruship should have gone to Sri Chand, since he was a man of pious habits in addition to being Nanak's son.