Palaquium polyanthum

Palaquium polyanthum (Wall. ex G.Don) Baill., Traité Bot. Méd. Phan. 1500 1884. (Syn: Bassia polyantha Wall. ex G.Don; Dichopsis polyantha (Wall. ex G.Don) Benth.; Isonandra polyantha (Wall. ex G.Don) Kurz);
  
Assam to Indo-China; Assam, Bangladesh, Myanmar, Vietnam as per POWO;
 

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Tree from Bangladesh SM033 : 14 posts by 3 authors.

Habit: Tree

Habitat: Hill forest

Fruiting: May

Location: Kaptai NP, Chittagong Hill tracts

Since attachment of stipe/stalk (in carpels) is not marked, I think this is a member of Annonaceae.

The problem is description of fruits not readily available in lit I have.
Moreover, one or two species. eg, Sageraea listeri King. is reported/added later since the pub of FBI.

btw, Madhuca fruit looks very similar at certain stage of growth.

Any Alphonsea species ?

Possible, perhaps Alphonsea ventricosa (Roxb.) Hook.f. & Thomson; provided carpels are about 1 inch and yellow when ripe.

Here some picture also. The image 660, the tree appeared behind the branches, Gnetum also climbing in picture  661
Also similar with the Sapotaceae member (Mimusops sp fruit)
Did you see Palaquium polyanthum ?

When I said Madhuca fruits look similar, I kept in my mind that it can be a sapotaceae member. But as I said before that there should be an attachment mark on fruits or residue of calyx. But, I am not altogether against the probability of sapotaceae.

The underside of leaves of Palaquium polyanthum (Wall. ex G.Don) Baill. should be like those of another species – http://www.natureloveyou.sg/Palaquium%20gutta/Main.html (pic 5 and 6 of the link).

The arrangement of Leaves differ it from Madhuca but similar with Palaquium species

Perhaps you have misunderstood me! I never said it was Madhuca. I think several sapotaceae may look like it, but the question remains.

Yes you never said it was Madhuca. Previously I just try to compare it  regarding leaves arrangement.

Thank you. Surely, fruit/berry description of Palaquium polyanthum (Wall. ex G.Don) Baill. matches with your tree!