and hopefully the tentative one too (Indrapasta Purana Qila as part of the Silk Road sites of India).
Don't forget Delhi's other T List site - "Delhi - A Heritage City"
. As well as earlier cities, this includes the Lutyens designed/planned colonial capital of New Delhi. It should NOT be missed - particularly the monumental axis from India Gate to the Presidential House along Rajpath past the government buildings. It is quite something to drive along if you take a taxi or use a bus. The residential/commerical areas centred on Connaught Circus are less impressive but still worth seeing - your hotel is only a couple of stops on the metro from it (Rajiv Chowk) which you will have to change at if you use the Metro at all.
I personally would base my travel plans on the metro with autorickshaws from the nearest stations to the sites themselves (particularly to get out to Qutb Minar and back).