1. Editorial

   • Rajaram Nityananda

   EditorialNotes 18 August 2015 Pages: 571 - 571

2. Science smiles

   • Ayan Guha

   Announcement 18 August 2015 Pages: 574 - 574

3. Asutosh Mukhopadhyay and his mathematical legacy

   • Satyabachi Sar

   General/Article 18 August 2015 Pages: 575 - 604

4. Gallium-nitride-based light-emitting diodes

   • Kota V. R. M. Murali
   • Vinayak Bharat Naik
   • Deepanjan Datta

   General/Article 18 August 2015 Pages: 605 - 616

5. Why so toxic?

   • Pritha Kundu
   • Srikant Venkitachalam
   • T. N. C. Vidya

   General/Article 18 August 2015 Pages: 617 - 627

6. A tribute to Bardhan and Sengupta

   • Suchandra Chakraborty
   • Chandan Saha

   General/Article 18 August 2015 Pages: 628 - 642

7. On the general equation of the second degree

   • S. Kesavan

   General/Article 18 August 2015 Pages: 643 - 662