Analysis of information sources in references of the Wikipedia article "جہاں پناہ" in Urdu language version.
"Whatever the cause of Tughalqabad's demise, Ghiyasuddin's successor Mohammed Bin Tughlaq returned to the original Rajput site. However, the Mongol threatened again and the new ruler decided to wall Qila Rai Pihora, Siri and the suburbs between them to build his Jahanpnah or "Refuge of the World"
{{حوالہ کتاب}}: |کاوش= تُجوهل (معاونت)