Garcinia cowa
Garcinia cowa, commonly known as cowa fruit or cowa mangosteen is an evergreen plant with edible fruit native to Asia, India, Bangladesh, Myanmar, Malaysia, Vietnam, Laos, Cambodia, Southwest China. The tree is harvested from the wild for its edible fruits and leaves, which are used locally. Generally found in evergreen tracts. Flowers are yellow, male & female flowers are separated.
It is locally known as Kau Thekera in Assamese, Kowa in Bengali and Malayalam, Kau in Manipuri.