Camping at Triund has been banned since the fall of 2018, and not a single soul followed it. But, from mid July onwards it has been implemented strictly. So, no-go for camping at Triund these days. You can still go to Triund by starting early from Mcloedgunj and return back and camp at Dharamkot. If you need any more hep with planning, feel free to ask. Good luck!