Air bnb's are the best
There are many in Gurgaon too and are quite luxuries.
Neemrana, hotel royal at Murthal
The Leela Palace New Delhi - Safe 5 Star Hotel in the City
There are many in Aerocity which are quite luxurious too but if u wanna travel around do check OTW to Rajasthan
You can compare the hotel rates over many sites like goibibo