SK 3736 11 June 2023: 3 high res. images.
Location: Palpa Deurali, Palpa, Nepal
Date: 30 May 2023
Elevation: 838 m.
Habit : Wild
Celastraceae ?
Pl. try Salacia:
https://efloraofindia.com/2011/03/27/salacia/
Just a guess.
The Salacia genus has no distribution in Nepal. How, it looks like Salacia chinensis L..
Please have a look at http://www.flowersofindia.Chinese%20Salacia.html
Please compare the angular branchlets!