You need permit and TIMS card ( Tourist Information Management System),photocopy of passport,photocopy of travel insurance paper and 4 photographs of standard size to visit government reserved areas like Annapurna Conservation Area,Sagarmatha National Park, Langtang Wildlife reservation , Rara National Park, Manaslu Conservation Area ,Kanchanjungha , Makalu Barun Valley Area, Shivapuri National Park.