The Baisakhi day (March 29) of 1662 brought to Kiratpur vast numbers of followers. The festival lasted three days. The sangats were looked after by the Guru’s grandmother, Mata Bassi, and mother, Mata Sulakkhni. In the sangat of Sialkot district was Pair Mall of Pasrur, along with his family. His son, Khem Karan, was a promising youth. Mata Bassi betrothed her granddaughter, Bibi Rup Kaur, to him. Nuptials were held on December 3, 1662. According to the Guru kian Sakhian, the presents offered by Mata Bassi included a pothi of stories from Guru Har Rai’ s mouth and a dagger belonging to Guru Hargobind.
Emperor Aurangzeb was not pleased to hear about the growing fame of Guru Har Krishan. He sent for him to Delhi as he had sent for his father, Guru Har Rai. Guru Har Rai had not gone himself, but had sent his elder son, Ram Rai, to the emperor’ s court. Now when a servant of Raja Jai Singh of Amber arrived with the emperor’ s message, Guru Har Krishan took counsel with his leading Sikhs. They said to him with clasped hands, “We are thy servants, Lord. With thy knowledge of all the three worlds, thou knowest best.” Guru Har Krishan called the messenger and told him that he would accompany him to Delhi. Guru Har Krishan traveled through Ropar, Banur and Ambala. Along the way, he instructed the disciples who came to call on him.
When Guru was near Panjokhara, a Sikh spoke with humility, “Sangats are coming from Peshawar, Kabul and Kashmir. Stay here a day so that they may have the chance of seeing you, Master.” The Guru agreed. In that village lived a pandit, Lal Chand by name, who was proud of his caste as well as of his learning. He came to see the Guru and spoke with derision: “It is said that you sit on the gaddi of Guru Nanak. But what do you know of the old religious books?” Chhajju Ram, the illiterate, dark-skinned village water-carrier, happened to pass by at that moment. Guru Har Krishan asked Dargah Mall to call him. As Chhajju Ram came, the Guru enquired if he would explain to the pandit the gist of the Bhagavad Gita. The illiterate villager astonished everyone by his cogent commentary on the sacred book. Lal Chand’s pride was overcome. Humbly he fell at the Guru’s feet. Both he and Chhajju Ram became the Guru’s disciples and travelled with him up to Kurukshetra. The former entered the fold of the Khalsa in Guru Gobind Singh’s time, and took the name of Lal Singh. Lal Singh met with a hero’s death fighting in the battle of Chamkaur on December 7, 1705. Gurdwara Bangla Sahib at Delhi, where Guru Harkrishan ji Stayed, got constructed by Sardar Baghel Singh
In Delhi, Guru Har Krishan put up in Raja Jai Singh’s bungalow which is now the site of Gurdwara Bangla Sahib. The house was a spacious one “designed to suit all the seasons of the year.” The Sikhs of Delhi started coming in groups to see the Guru. They came chanting the holy songs and brought offerings with them. According to the Guru kian Sakhian, Guru Har Krishan visited the emperor’s court on Chet Sudi Naumi, 1721 Bk/March 25, 1664. As says the Mahima Prakash, the emperor had planned a trial. He had two large trays laid out for the Guru. One of these displayed ornaments, clothes and toys. The other had in it a holy man’s cloak and cowl. Both were presented to Guru Har Krishan. He rejected the tray containing ornaments and clothes, and accepted the one containing the cloak. The emperor was convinced of his holiness. He thought he would invite him again and see him perform a miracle. Guru Har Krishan guessed what the emperor had in his mind. He told himself that he would not see his face again. He believed that no one should attempt a mirage and try to disturb the law of God. Guru Har Krishan knew how his father had punished Ram Rai, his elder brother, for showing feats in Aurangzeb’s court.