Contents: 1. Life and work. 2. A realistic expression in his fiction. 3. Characters: living and real. 4. Strand of realism: a comparison between Shiv K. Kumar and R.K. Narayan. 5. Social realism in Kumar’s novels. 6. Compendium. Index. Shiv K. Kumar's fiction is a strong base of social realism. Realism in literature is an approach that attempt to describe life without idealization of romantic subjectivity. In this sense, Kumar's fiction is like a mirror which reflects social realities vividly. Infidelity in love and marriage is destroying the social fabric. Kumar presents it in all its nakedness. He does not merely depict the dark side of life, ruthless, violent and destructive countenance of society, but also he suggests solution to it. There is a counterbalance of dark side and bright side of life in his fiction. Apart from it, Kumar's erudition and his lucid style of writing in divergent disciplines of literature have made me feel that he is a major creative writer in Indian Writing in English.