1. Editorial

   EditorialNotes 24 April 2013 Pages: 299 - 300

2. S Pancharatnam (1934–1969): Three phases

   • Rajaram Nityananda
   • Kausalya Ramaseshan
   • G. W. Series

   Article-in-a-Box 24 April 2013 Pages: 301 - 305

3. Science smiles

   • Ayan Guha

   OriginalPaper 24 April 2013 Pages: 308 - 308

4. The interference of polarised light

   • Rajaram Nityananda

   General / Article 24 April 2013 Pages: 309 - 322

5. Ashoke sen and S-duality

   • Dileep Jatkar

   General / Article 24 April 2013 Pages: 323 - 335

6. Glimpses of a century-old story

   • Jasmine M. Shah

   General / Article 24 April 2013 Pages: 336 - 344

7. Algorithms, the λ calculus and programming

   • Abhijat Vichare

   General / Article 24 April 2013 Pages: 345 - 367

8. An application of matrix multiplication

   • V. Yegnanarayanan

   General / Article 24 April 2013 Pages: 368 - 377

9. The analogue of potentiometer for current Zero Resistance Ammeter (ZRA)

   • Sachin Nayak

   Classroom 24 April 2013 Pages: 378 - 386

10. Generalized theory of interference, and its applications

    • S. Pancharatnam

    Classics 24 April 2013 Pages: 387 - 389

11. Pierre Deligne wins Abel Prize 2013

    • B. Sury

    Information and Announcements 24 April 2013 Pages: 390 - 391

12. Fiftieth Refresher Course in Experimental Physics

    Information and Announcements 24 April 2013 Pages: 392 - 392