Seljuq dynasty
Alauddin is the best known of the Khalji dynasty because he extended his dominion to Southern India and established the second city of Delhi, Siri. He created Siri between 1297 and 1307 to defend against Mongol invasions of India and Delhi. In response, he built Siri Fort, mimicked massive Turkish ones. The Fort served as the seat of his power during his campaigns to enlarge his territory. Due to frequent Mongol invasions of West Asia, the Seljuqs took asylum in Delhi. The craftsmen of Seljuq dynasty are credited with this era's architectural monuments in Delhi.