Dear aspirant as both the colleges are private but affiliation of patanjali college is approved whearas for himalyan college affiliation is constituent. Both are co-ed colleges but himalyan college was established in 1995 whereas patanjali college is established in 2006. for more details about both the colleges you may refer to the links below:

https://www.careers360.com/colleges/patanjali-ayurved-college-haridwar

https://www.careers360.com/colleges/himalayan-institute-of-medical-sciences-dehradun

Hope it helps.

All the best:)