I think it is
Cotoneaster marginatus (
POWO considers it as a syn. of
Cotoneaster integrifolius (Roxb.) G.Klotz) as per keys in Online Flora of Nepal:
15a Prostrate shrubs with irregular branching. Leaf margin flat, apex obtuse to retuse, rarely acute, glabrous or glabrescent below ...
C. microphyllusb Low or dwarf shrubs, divaricate or squarrose, with regular branching. Leaf margins ± revolute, apex obtuse, acute or acuminate, tomentose, pubescent or glabrescent below ...
C. integrifolius