Al-Biruni, a Persian scholar and polymath, wrote Tahqiq-i-Hind (also known as Kitab al-Hind) in the 11th century. This book is a detailed study of Indian society, culture, religion, and sciences, based on his observations during his travels in India under Mahmud of Ghazni. It provides valuable insights into early medieval Indian civilization.
Match Fibre with Application.\[\begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \textbf{Fibre} & \textbf{Application} \\ \hline \hline \text{A. Silk fibre} & \text{I. Fire retardant} \\ \hline \text{B. Wool fibre} & \text{II. Directional lustre} \\ \hline \text{C. Nomex fibre} & \text{III. Bulletproof} \\ \hline \text{D. Kevlar fibre} & \text{IV. Thermal insulation} \\ \hline \end{array}\]