Explanations of the astronomical tables of Muḥammad Shāh (drawn up in the reign of the Emperor Muḥammad Shāh, 1131-1161 A.H., 1719-1748 C.E.) by Bin ‘Azīm al-Dīn Muḥammad Khān ‘Abdallāh, called Mahārat Khān. He divided his work into a muqaddimah (introduction) and five maqālahs (articles/chapters), of which this copy contains only the first three.

A Descriptive Catalogue of the Arabic and Persian Manuscripts in Edinburgh University Library by Mohammad Hukk et al. (1925) states: "There is added on fols. 1a-2a part of the preface to the Zīj-i Jadīd-i Muḥammad-shāhī in which the Rājput prince and Rājah of Amber, Jai Singh, embodied his astronomical observations, at the command of the Emperor Muḥammad Shāh in 1140-1141 A.H. (1728 C.E.) ...This fact has misled Dr. (later Sir) William Hunter, of Calcutta, the donor of this MS., to represent the present work as the famous composition of Jai Singh, with which it has, in fact, nothing to do." See said catalogue for more details.