Complex sentence: The structure was intended to be higher than its existing height but the work was stopped due to untimely death of Sher Shah.was built by Sher Shah and was used as a library by Humayun after he recaptured the fort.
Split into simpler sentences: The structure was intended to be higher than its existing height but the work was stopped due to the untimely death of Sher Shah. It was built by Sher Shah and was used as a library by Humayun after he recaptured the fort.