Diaspora is a crucial part of colonialism since it typically consists of millions of individuals who left their homelands in search of better opportunities overseas, frequently to industrialized nations. Majority of the novels written by diasporic writers explore the themes of upheaval, alienation, loneliness, and self-discovery. Leaving homeland is a distressing phenomenon whether it is voluntary or forcible. Authors of diasporic ancestry effectively express the emotional and physical suffering endured by their protagonists upon relocation to a new locale. Diaspora individuals are emotionally and physically split from their natives and the rest of the world, despite being crowned, projected, known and loved in their new society. Sunetra Gupta, an eminent member of the Indian diaspora, examines the experience of immigrants in the United States by employing her characters. In the select novels of Sunetra Gupta, people find serenity by staying in their own country. They are delighted and content since their prior experiences have left positive and lasting impressions in their minds. This paper attempts to explain and analyze the problems that Moni, Nikarika and Debendranath face in Memories of Rain and A Sin of Colour.