It is a historical fact that Indian horses were far inferior to the Horses from Across the Khyber pass. The horse trade from Khorasan (modern-day Afghanistan) into India goes back a very long way. Not long ago I came across a book:
“The trade in horses between Khoraann & India in the 13th to 17th Centuries.
https://www.academia.edu/27751573/T...KHORASAN_AND_INDIA_IN_THE_13TH_17TH_CENTURIES
Since Potahar region is the route through which most of the trade between India and Central Asia would have to pass; I have no doubt that the majority of the population of the Potiphar region had horses. However, my region (Sargodha area) was also considered suitable for horse breeding after the area opened up after the Upper Jhelum canal became operational in 1901. 40 acres of arable land was allotted by the British Indian govt’ for keeping one horse breeding mare for the army. This Scheme was commonly known as ‘Miurabbay dar Ghori and understand it continued as late as 1940.
To date, Mona Depot Sargodha is famous for beading horses & mules for the Pakistan Army.
https://defence.pk/pdf/threads/mona-remount-depot-the-horsemen-paradise.402022/