He has described Shah Jahān's life and activities during the first twenty years of his reign in this book in great detail.
[3] In his advanced age, ʿAbd al-Ḥamīd retired to Patna, from where he was summoned by Shah Jahān to write official chronicle of his reign on the recommendation of his grand vizier Nawab Saʿdallāh Khan, as emperor wanted someone who could emulate the style of Akbar-nāma of Abū l-Faḍl which he greatly admired.
[3][5] Old age compelled him to cease writing and entrust remaining work to his student Muḥammad Wārith (d. 1680), who completed the Pādshāh-nāma.
It was built by the heartbroken Mughal emperor Shah Jahān in memory of his second wife, Empress Momtāz Maḥall, who had died in childbirth.
Shah Jahān's official chronicler ʿAbd al-Ḥamīd writes that the construction began six months after Empress Momtāz Maḥall's death which was on 17 June 1631.