Here’s an article detailing examples of waterworks in Mughal gardens, to give context to my question:
https://www.jstor.org/stable/44156328?seq=6#metadata_info_tab_contents
There are accounts mentioned, for example, of hundreds of fountains gushing water 12 feet into the air, and pressurized water-chutes used in irrigation; this was a technology that had developed earlier in Iran, also.
Great question and even I'd always been intrigued by the Char-bagh style of gardens the Mughals built all across South Asia and Afghanistan.
Check out this paper on early water system in the Mughal India.
u/Jalal-ud-deeeen you might find this interesting.
Also check out this video on how the British left their mark on the gardens.