Santosh Tirunagari has always been motivated in doing experimental as well as theoretical aspects of research. During our PhD research, we have had a lot of collaboration work especially developing new methods in machine learning, natural language processing utilising the probabilistic Bayesian networks. I found Santosh as an exceptional colleague who can independently develop ideas to approach a problem. Santosh has a particular proficiency in writing programmable code from the mathematical expressions present in the scientific journal papers. He is socially very friendly and a very nice person to hangout with.