Who completed the Qutab Minar?

The Qutub Minar was completed by

The Qutub Minar of Delhi is dedicated to:

Who among the following did not contribute to building the famous ‘Qutb-Minar’?

Who amongst the following Sultans built the fifth storey of Qutb Minar?

Who among the following started ‘Tanka’ silver coin?