Yes looks close to Spinose planktonic foraminifera as pointed out by Dr Towe.. 

Likely Foraminifera but I don't know the species;

yes sir,

this is abnormal in my finding

The photo shows an Acantharia, Phylum Actinopoda, earlier included into the Radiolaria. Acantharia have spines of strontium sulfate. I am not a taxonomist of this group and do not offer any genus name. Try to find a taxonomist of Actinopoda.

Dear Dr. Kenneth M Towe

This specimen is collected while analysis the sediment of coastal region of bay of bengal. That's an abnormal appearance into the sample of meiobenthos. thus i have used the word abnormal.

Affinity with Acantharia is strong as suggested by Malte Elbraechter. Determine SrSO4 composition of Axopodia, as the tests are seldom expected to be preserved in sediments.

Best

Syed

planktonic foraminiferan Kennath  answer correct..

Even I am not a taxonomist of this group I think it a Radiolaria

KMT:

Acantharia were earlier included in Radiolaria. SEM coupled with elemental analysis (EDX) would confirm the true affinity of these forms.

http://sciencenordic.com/sites/default/files/imagecache/620x/radio_423px-Haeckel_Spumellaria_2.jpg

https://johandecelle.files.wordpress.com/2013/01/acantharia-gutierrez-black.jpg

Best

Syed