1. Editorial

   • N. Sathyamurthy

   EditorialNotes 21 October 2020 Pages: 1171 - 1174

2. Science Smiles

   • Ayan Guha

   Announcement 21 October 2020 Pages: 1175 - 1175

3. Daulat Singh Kothari (1906–1993)

   • Amit Roy

   Article-in-a-Box 21 October 2020 Pages: 1179 - 1184

4. Will Betelgeuse Explode?

   • Priya Hasan

   General Article 21 October 2020 Pages: 1185 - 1195

5. Hydra: A Powerful Biological Model

   • Surendra Ghaskadbi

   General Article 21 October 2020 Pages: 1197 - 1213

6. The Mind Behind the Hebbian Synapse

   • Shriya Palchaudhuri

   General Article 21 October 2020 Pages: 1215 - 1230

7. Experiences of a New Teacher

   • Purusharth I. Rajyaguru

   OriginalPaper 21 October 2020 Pages: 1231 - 1239

8. Making Inorganic Chemistry Interesting

   • N. Rajesh

   General Article 21 October 2020 Pages: 1241 - 1249

9. On Proving a Program Shortest

   • Arindama Singh

   General Article 21 October 2020 Pages: 1251 - 1260

10. Physics of a Particle on a Rotating Hoop

    • Kushal Lodha
    • Anushree Roy
    • Sayan Kar

    General Article 21 October 2020 Pages: 1261 - 1281

11. G. P. Thomson’s Experiment of Electron Diffraction

    • Chetan Kotabage

    Classroom 21 October 2020 Pages: 1283 - 1286

12. A New Look at Classical Mechanics

    • Dipanjan Chakraborty

    Book Review 21 October 2020 Pages: 1287 - 1289

13. The Theory of Pressure-ionization and its Applications

    • Amit Roy

    Classics 21 October 2020 Pages: 1291 - 1306

14. Information and Announcements

    • M. R. N. Murthy

    Announcement 21 October 2020 Pages: 1307 - 1308

15. Night Life Nightjar or Camoufler-jour

    Announcement 21 October 2020 Pages: 1309 - 1309