Prof. ABCD was a brilliant condensed matter physicist working in various aspects of phase transitions, non-equilibrium systems, quantum information and quantum critical phenomena. An excellent educator, an exemplary mentor to graduate students and a much loved teacher across the spectrum of students. His friendship and cordiality was treasured by everyone across the institute, be it colleagues, their families, the admin or the support staff. His positive personality was infectious and drew people near him. His large heartedness and kindness was felt by everyone who was associated with him. He was particularly known for pulling everyone's leg, as well as to provide genuine concern and care in times of need.