I am extremely shocked to hear the news of Hari's passing away. I first met Hari nearly four decades ago. He was an established professor and I was just starting my research career. He treated all young researchers and students with great respect. I have many fond memories of interactions with Hari. He was a pioneer in many areas of artificial intelligence, and was responsible for the automated recognition of handwritten addresses by the U.S. mail service. His research also had a significant impact on many of us. Hari's facebook postings were always a joy to read. Hari was a very humble person and an epitome of kindness. Hari's spirit will always be with us. Our sincere condolences to Rohini, Dileep, and Ashok.