In the genre of diasporic literature, Chitra Banerjee Divakaruni's novels stand out as vibrant masterpieces that combine the experiences of immigrant women through the perspective of sisterhood. This work analyses the psychological nuances of Divakaruni's characters and explores how sisterhood represents the immigrant reality. This study aims at how sisterhood is presented in Divakaruni's extraordinary novels, centering on the psychological stresses and achievements characterizing the characters' lived experiences. Through close textual analysis of "The Mistress of Spices," "Sister of My Heart," "Oleander Girl," and "Queen of Dreams," this research employs feminist and postcolonial theories to analyze complexities of sisterly roles and relations within diaspora cultures. From the narratives of Divakaruni, it is evident that sisterhood is a complex interaction that can be supportive, empowering, and conflicting. The main characters lead their families through the dilemmas of cultural conservation and adjustment to new conditions; their sisterly bonds help perpetuate preexisting traditions and stimulate the transformation process. The study explains how Divakaruni employs the theme of sisterhood to represent the situation of immigrant women of color in redefining their cultural identities in the new environment. This study is helpful in the ongoing discussions about the diaspora literature, and its findings reveal how the relationship between sisters can help improve our understanding of how immigrants navigate cultural change and individually develop an identity. The issues of sister relationships in Divakaruni's works come out clearly and contribute to conveying the Indian immigrants and the circumstances they undergo as they seek to build their new homes abroad and ask questions about their identity..