Dr Deepak Kumar (1988)My friend and colleague, Deepak Kumar, passed away all of a sudden late Monday (25th January) night. I had seen him that day, sharing a cup of tea with another member of the faculty in the afternoon sun on the lawns of the School of Physical Sciences at JNU. The spot where he sat was directly visible from my office window- Deepak often sat there and had his lunch. I hadn’t spoken to him that particular day, but that was not unusual – there were many days like that. But it was not just another day, not like any other.

Deepak was one of the first to join the School as Professor when it was formed, and he brought a decade or more of experience at the University of Roorkee. As it happened that greatly helped the School in its early, formative years, and set the mark for how it developed subsequently, defined what it’s core values were, and the sense of purpose and commitment that it has had since.

Colleague for almost 30 years, Deepak has been a friend for a little over that, and if I were to have to characterize him, the title of this post says it as well as anything. Deepak was a scholar in the true sense of the word, and one for whom the world of physics was all absorbing. Although his professional interests were in condensed matter physics, he was both knowledgeable about, and was interested in a huge range of topics. One could go to him for just about any doubt, count on him to give the right bit of advice, and if the matter happened to be something that he knew well, his intellectual generosity was limitless.

This is not exaggeration. Not for nothing was Deepak the most collaborative colleague that we have at the SPS:  of the 20 or so faculty that we have in physics, Deepak has actually written papers with no less than seven of us. And with something like twice that many students, either as their formal or informal supervisor, as a mentor in the best tradition.  Indeed, he mentored the first Ph. D. that was awarded from the SPS, and both directly and indirectly showed many of us the way in which one could bring out the very best in our students.

There is so much to say about Deepak- his academic contributions in condensed matter and statistical physics, the several awards, the recognition. But this above all: This was too soon and too sudden. There were many many good years of physics one could have had from him, and many years of physics that he would have enjoyed.  Even the last day, on Monday, he gave a lecture, there was another scheduled this week. And last semester he taught a course for the MSc Physics seniors. He was working to the end, and he went with his academic boots on…

I know his ethos will continue to guide us, and I can only hope that we will not forget his calming spirit that often brought hot tempers down, his somewhat other-worldly smile, and his gentle sense of humour that helped us all see that there were many ways of reaching conclusions. We all will miss him deeply, the community that he helped build at JNU, and the larger community of physicists in the country that knew and admired him.