ヒンドゥスターニー語
The name "Red Fort" is a translation of the Hindustani (, ), deriving from its red sandstone walls. "Lal" was derived from Hindustani language meaning "Red" and "Qalàh" derived from Persian word meaning "Fortress". As the residence of the imperial family, the fort was originally known as the "Blessed Fort" (). Agra Fort is also known as .