I have a doubt in history ( social science 7th grade) in the textbook in the Delhi sultanate chapter in info-bubble its says Shajanabad was built by the Delhi sultans and in Mughal empire 2 they say Shahjahan built it so who actually build the city Shahjahanabad or is it Shahjahan re-build the city built by the Delhi sultans? Can anyone please let me know I have a test day after tmr?