You can book a Delhi tour package from any travel agency. It is a good idea to know the basic terms and the different types of tours before you make a booking. One of the most important questions is the language. Although English is widely spoken in India, it is not common to find native speakers. This article will give you some useful information about the different languages in Delhi. You'll have a better understanding of how to speak Hindi and other Indian languages if you're planning to go there.
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https://wingstourntravels.hpage.com/delhi-darshan-package-and-delhi-sightseeing-family-package.html
https://www.fuzia.com/article_detail/324702/delhi-tour-package-by-car-one-day-delhi-darshan-package