Author of well over 200 books, Sunil is a prolific writer who has excelled in different genres but declares poetry to be his "first love". He was the founder editor of Krittibas, a seminal poetry magazine that became a platform for a new generation of poets experimenting with many new forms in poetic themes, rhythms, and words. His Nikhilesh and Neera series of poems (some of which have been translated as For You, Neera and Murmur in the Woods) have been extremely popular.