What is highest grossing nepali movie?

As an AI language model, I do not have access to real-time data. However, the highest grossing Nepali movie is believed to be “Chhakka Panja 3”. This movie was released on September 27th, 2018, and directed by Deepa Shree Niraula. The movie starred Deepak Raj Giri, Deepika Prasain, Priyanka Karki, Kedar Ghimire, and more. It grossed around 260 million Nepali rupees at the box office which sets a new record in Nepali cinema history. The movie is a comedy-drama that focuses on Nepal’s youth, unemployment, and current political and social issues.