Guru Nanak had only one sister named Nanaki. She was married to Jai Ram, a Dewan in the service of Nawab Daulat Khan Lodi, who was a relative of Sultan Bahlol, the then Emperor of Delhi. The Nawab had an extensive Jagir in Sultanpur near Kapurthala. Nanak also married soon after his sister’s marriage. His wife was Sulakhani, daughter of Mula, a resident of Batala, in the district of Gurdaspur. Marriage and the birth of two children did not, in any way, stop Nanak’s spiritual pursuits. He went even then to forests and lonely places for meditation.

Nanaki and Jai Ram loved and respected Nanak much. Rai Bular, the Zamindar of Talwandi, also had great regard for Nanak. Rai Bular and Jai Ram thought that Nanak should be fixed in some job at Sultanpur. Jai Ram took Nanak to the Nawab, who put Nanak in charge of his storehouse. Nanak discharged his duties very satisfactorily. Everybody was very much pleased with his work. In those days the salary was given in kind and so Nanak received provisions. He spent a small portion for his own maintenance and distributed the rest to the poor.

Nanak had two sons named Srichand (born in 1494 A.D.) and Lakshmichand (born in 1497 A.D). Srichand renounced the world and founded a sect of ascetics called Udasis. The Udasis grew long beards and long hair. The application of razor to any part of the body was strictly prohibited. Lakshmichand became a man of the world. He married and had two sons.

Nanak gave up his service and distributed his goods amongst the poor. He lived in the jungles and put on the garb of a Fakir. He practised severe austerities and intense meditation. He sang inspired songs. These are all collected and preserved in the Adi Granth—the sacred book of the Sikhs.

The minstrel Mardana came from Talwandi and became Nanak’s servant and faithful devotee. When Nanak sang songs, Mardana used to accompany Nanak on the rebeck. Mardana was an expert musician. He sang Nanak’s songs always to the accompaniment of the rebeck. Nanak became a public preacher at the age of thirty-four. He began to preach his mission. His preaching produced a deep impression on the minds of the public. He left Sultanpur and toured about in Northern India.

Rai Bular, the Zamindar of Talwandi, became very old. He wanted to see Nanak and so he sent a messenger to Nanak. Nanak at once proceeded to Talwandi and saw Rai Bular and his own parents and relatives. All his relatives began to explain to Nanak how they stood towards him in relationship and persuaded him to give up his mission and stay at home comfortably. Nanak replied: "‘Forgiveness’ is my mother and ‘contentment’ my father.

‘Truth’ is my uncle and ‘love’ my brother. ‘Affection’ is my cousin and ‘patience’ my daughter. ‘Peace’ is my constant female companion and ‘intelligence’ my handmaid. Thus is composed my whole family whose members are my constant associates. The only one God—the Creator of the whole universe—is my husband. He who forsakes Him will be caught up in the round of births and deaths and will suffer in various ways".

Guru Nanak had great influence over Babar, who had very great regard for Nanak. Babar offered valuable presents to Nanak. Nanak, having declined them, asked Babar to release the captives of Eminabad and restore their properties. Babar at once carried out the wishes of Guru Nanak and implored Guru Nanak to give him some religious instructions. Guru Nanak said, "Worship God. Repeat His Name. Give up wine and gambling. Be just. Revere saints and pious men. Be kind to all. Be merciful towards the vanquished".