Complex sentence: He built the Hauz-i-Shamsi reservoir in Mehrauli in 1230 AD, which also has Jahaz Mahal standing on its edge, used by later Mughal Emperors, his tomb exists, within the Qutb complex in Mehrauli, Delhi.
Split into simpler sentences: He built the Hauz-i-Shamsi reservoir in Mehrauli in 1230 AD, which also has Jahaz Mahal standing on its edge, used by later Mughal Emperors. His own tomb exists, within the Qutb complex in Mehrauli, Delhi.