1. Wikipedia for all info
    https://en.wikipedia.org/wiki/Main_Page

2. For physical sciences tutorial (classes) videos from 6th to 10th in Telugu and English
   www.youtube.com/technoscienceclub

3. Deportment of science and technology of India 
   https://dst.gov.in

4. National council of science museums ( NCSM)
   http://ncsm.gov.in/

5. IUPAS website
    https://iupac.org

6. NASA official website
   https://www.nasa.gov

7. discovery website
   https://www.discovery.com

8. science daily 
   https://www.sciencedaily.com

9. NCERT website
    http://ncert.nic.in/
10. SCRET AP website
    http://apscert.gov.in/