Muhammed Yusuf Khan enlisted under Chanda Sahib who was then the Nawab of Arcot. While staying in Arcot he fell in love with a 'Portuguese' Christian (a loose term for a person of mixed Indo-European descent or Luso-Indian) girl named Marcia / Marsha , and married her. In 1751, there was an ongoing scuffle between Muhammed Ali Khan Wallajah, (who was the son of the previous Nawab of Arcot Anwaruddin Muhammed Khan hence the rightful claimant) and Chanda Sahib his relative and a pretender, for the throne of Arcot. The former sought the help of British and the latter the French. Chanda Sahib
Ali Qushji Ṭūsī’s "Tadhkira" (II.1[6]) in which Copernicus follows Ṭūsī’s objection to Ptolemy’s "proofs" of the Earth's immobility." Ali Qushji Ala al-Dīn Ali ibn Muhammed (1403 – 16 December 1474), known as Ali Qushji (Ottoman Turkish/Persian language: علی قوشچی, "kuşçu" – falconer in Turkish; Latin: "Ali Kushgii") was an astronomer, mathematician and physicist originally from Samarkand, who settled in the Ottoman Empire some time before 1472. As a disciple of Ulugh Beg, he is best known for the development of astronomical physics independent from natural philosophy, and for providing empirical evidence for the Earth's rotation in his treatise, "Concerning the Supposed Dependence