Image: https://cdn.whensthebirthday.com/gallery/2017/1/kumar-bhattacharyya/kumar-bhattacharyya-baron-bhattacharyya-wikipedia-el.jpg
Kumar Bhattacharyya
professions.scientist de Bangladesh
Image: https://cdn.whensthebirthday.com/gallery/2017/1/kumar-bhattacharyya/kumar-bhattacharyya-baron-bhattacharyya-wikipedia-el.jpg
professions.scientist de Bangladesh