Maybe Elaeagnus parviflora (E. umbellata var. parviflora) - it is known from Manipur!

http://www.flowersofindia.net/catalog/slides/Autumn%20Olive.html

First I met this family was thanks to Vitor, or Brazilian member in this forum. From Whom I got two Endopleura uchi seeds. Unfortunately my seeds went bed, as I couldn't personally take care and my relatives weren't serious. But in future I definitely retry it.
However as i understand, this small family offers different other interesting edible species. Maybe anybody can give some more information on edible species, taste, uses......
In the Internet only limited sources seem to be available.
Thanks

From my 12 seeds 6 sprouted - 5 immediately, and one 4 months later. The other 6 may still sprout at spring. The condition is very good, growing easily and fast. I had a problem with insect but solved it - the plant recovered fast and are growing. Hopefully they flower and fruit soon.

Garcinia 2 reminds of g.mangostana

I have different collectors in some states of India and
some of them are knowledgeable in the subjects and the rest of them are not.
My collector from Assam just wrote Hedvekuli on the bag and sent it
(The plastic bag was much bigger than the paper envelope
containing Cassia fistula from a different collector).
My this collector from Orissa wrote Cassia fistula clearly on the
smaller paper packet with date and place of collection.
There was no confusion in both the items.
The mistake was done by the collector from Assam.
Usually I will ask photos of fruit,seed and leaf but that time he did not send.
Roy

At least for sure we know subfamily. I think I will be able to find out species

The problem is that maybe there is some reclassification needed.
I couldn't find unfortunately herbarium pictures of both taxa.
However many sources state G.cowa=G.kydia, what is strange, as the link You sent me definitely shows the opposite.
Also, your frouit doesn't look like G.cowa to me.G.cowa has the typical ribs. Basically a bit like G.gummi-gutta, but in lesser grade. You can see that clearly on the pictures You posted.

According to plantlist however G.kydia is listet as independent species!

The first 2 pictures seem completely different. Many other pictures may be related, G.cowa seems to loose ribs during maturation...
4. looks actually like pedunculata???

It is  some Cassia, Senna or Chamaechrista most probably.
!00% it is from Caesapinoidae

Dear Digpati - I don't think so. The Plant on Your pics have composed leafs, while Atalantia seems to have simple leaft, or am I wrong?

Maybe Eriobotrya prinoides

Dear Sreekumar - this doesn't look like an Artocarpus neither Moraceae...
Maybe it is Meliaceae (but only maybe, I am not sure from leafs)
Artocarpus doesn't have such composed leafs

Intresting - I had same problem with some Cherimoyas years ago. Hope we get the answer.