National science day 10 lines speech in english || Speech on science day

National science day speech this video is all about. In this video you will learn and write 10 best sentence on national science day. We all know that national science day is celebrated every year on 28 February in India. It is celebrated to commemorate the discovery of the Raman effect by a great Indian scientist Dr. C.V. Raman. Hope you all like this video. Thanks for watching!!