Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching Naurang Studio, Patna [since 1973]. and this video is uploaded by Dr. Md. Tanwir Alam at 2017-06-28T11:38:08-07:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [Kj_VLQDUh0g]