Hi, snowline cafe is a good off beat destination in Himachal Pradesh for camping. You can reach there by trekking for 1-2 hours from Triund. Camps at snowline cafe for available for just 400 per night.
Hope it helps you and do share your experience on Tripoto.
Last November we visited Himachal , and we stayed at a camping place near tosh village, if you trek up away from village you find one or two camping spots where the view is amazing !