Alberuni`s account of India is found in his book "Kitab-ul-Hind". This book is a comprehensive study of India`s culture, religion, society, and scientific advancements. It provides detailed information about various aspects of Indian life, including its history, geography, languages, literature, and philosophy. Alberuni`s observations and analysis in "Kitab-ul-Hind" have been widely regarded as one of the most important works on India during that time. It provides valuable insights into the social, cultural, and intellectual dimensions of medieval India. It is important to note that although the other options mentioned (Chachnama, Futuh-us-Salatin, and Tarikh-i-Yamini) are historical texts, they do not contain Alberuni`s account of India. Therefore, the correct answer is option 4, "Kitab-ul-Hind".