When Guru Sahib was called to Delhi by Aurangzeb on the behest of his brother Ram Rai, he was entertained royally and hosted by Mirza Raja Jai Singh who made arrangements of the Guru's stay at Delhi in his own palace. Diwan Dargah Mull, Bhai Gurditta Ji, Bhai Mati Das Ji and the mother of the Guru Ji had accompanied him. Raja Jai Singh dedicated this palace in the memory of the Guru Sahib, which is today famous as Gurdwara Bangla Sahib