It  is solanum viarum fruits 

It is Solanum khasianum fruits.

Dear Syamala,

You can also take help from: http://solanaceaesource.org/

OR

contact the world authority:

Dr. Sandra Knapp for identification.

However, you should provided all the associated  field data and more morphological characters for helping in identification.

With best wishes,

Subir.

Dr.Subir is right.Please provide more info  as suggested by him Simply putting the berries is not enough.You have removed  calyx also which is also equally diagnostic in identiication of Solanums. 

Best

I agree to Dr. Subir Sir and Professor Bir Bahadur Sir. Nevertheless I would guess it as Solanum muricatum.

Solanum muricatum Bertero ex Dunal is a synonym of  Solanum furcatum Dunal

See http://solanaceaesource.org/solanaceae/solanum-furcatum

It is not possible to identify its species only with the help of fruits. So, please provide a flowering/fruiting twig along with mature leaves and size of mature fruit.

@ Dr. Subir Sir

The link doesn't work. Please have a look at this link.

http://www.theplantlist.org/tpl/record/tro-29601697

You have to write to Scientist Incharge, SAIF, CSIR-CDRI, Janakipuram Extension, Lucknow. 226031. He will inform you about the whole process.  Once MS/MS is run, I will analyse data to mark the species.

Dear Arvind,

There are two Solanum muricatum:

Solanaceae Solanum muricatum Bert. ex Dunal -- Prodr. [A. P. de Candolle] 13(1): 150. 1852 [10 May 1852] (IK)

Solanaceae Solanum muricatum Aiton -- Hort. Kew. [W. Aiton] 1: 250. 1789 (IK)

The Solanaceae Source server was down. It is working now.

I landed into trouble by not knowing that Solanum muricatum was published twice by different authors.

I have checked the link of Plant List  where Solanum muricatum Aiton has been shown to be accepted name. It has also shown to be a accepted name in Solanaceae  Source. There is no mention of Solanum muricatum Bertero ex Dunal in Plant List.

What I want to emphasize that we should not blindly believe Plant List in finding out the accepted names. On the other hand  Solanaceae Source is personally maintained by Dr. Sandra Knapp who is a world expert of this group. So we can definitely rely on the data given in this site for Solanaceae.

With best wishes,

Subir.

Dear Dr. Subir Sir,

I was talking about this Solanum muricatum Ait. which is a shrubby species.

https://en.wikipedia.org/wiki/Solanum_muricatum

As far as Solanum furcatum Dunal ex. Poir. is concerned it is herbaceous species morphologically similar to Solanum nigrum.

Regards,

Dr. Arvind Singh

Thank you Arvind.

Syamala please provide some  basic information needed for identifying the Solanum.I already mentioned earlier.Pllease  do so to enable us othewise   guess work will continue.

Sir, the plant is very short with spines.  fruits are yellow with green 'venation', fruit wall is covered with minute hairs (pubescent). spines are less in number over the calyx. fruits are ~22 x 25 mm and ~350 brown seeds, discoid with ~2.5 mm size.

Thank you all 

Syamala Bindu

I think these are fruits of Solanum melongena L. var. Mattu Gulla

https://en.wikipedia.org/wiki/Mattu_gulla

Thanks!