Among your options I believe Doon Business School is the better Institute as long as you target a MBA in Dehradun. However, I would advise you to try pursuing MBA from UPES Instead, instead of the former options. UPES has by far the best business school in Dehradun with excellent infrastructure, faculty and at par placements and employer outlook in the Energy, Finance, Infrastructure, Economics and Operation sector.

Perhaps if you are appearing for CAT and want to complete your MBA itself in Uttarahand, IIM Kashipur followed by Department of Management Studies, IIT Roorkee may be better options providing effective management education.

For more information do follow the link below

https://bschool.careers360.com/colleges/list-of-mba-colleges-in-uttarakhand