Drop ur best Utharakhand Itinerary

Hi y'all,am from Bangalore.I am planning to visit this beautiful state on 20th February for 10 days.I will reach haridwar on 20th.Drop your suggestions for a 10 day utharakhand trip.Please include local treks.My primary destinations are Haridwar, rishikesh, rudraprayag, devprayag, badrinath,auli, mussoorie and dehradun.Drop some beautiful destinations nearby this areas and ur suggestions regarding some offbeat destination that are not famous.Am planning for a rental bike trip towards, rishikesh, Devprayag,and rudraprayag and badrinath.share some of the cheat accommodation facilities(any free stay providing gurudwaras are also fine) and bike rental shops in the route and I want to know whether Tent camping is possible in these areas.Am my budget is 10-15k So I need to minimise accommodation expenses.