If you're interested in a New Year tour to Himachal Pradesh that includes a trekking experience, you may want to consider the "Trek Himalaya Camp Tour & Travel" package. This tour operator offers various packages that include trekking, camping, and sightseeing in different parts of Himachal Pradesh. The "New Year Trek Himalaya Camp Tour" is a popular package that includes a trek to the scenic Tirthan Valley, which is known for its natural beauty and serene environment. The package includes camping in comfortable tents, meals, and transportation to and from the starting point of the trek. While I'm not sure if they offer a specific discount of 50%, it's always a good idea to inquire about any special offers or discounts that they may have available. Additionally, it's important to read reviews and do your research to ensure that the tour operator is reputable and reliable, and that the package meets your expectations and preferences. Overall, a New Year tour to Himachal Pradesh with Trek Himalaya Camp Tour & Travel can be a great way to experience the natural beauty and cultural richness of this enchanting region.