"Sister of My Heart" is a novel by Chitra Banerjee Divakaruni that explores the deep bond between two Indian girls, Anju and Sudha, who grow up in a traditional household in Calcutta. The story unfolds against the backdrop of family expectations, cultural traditions, and the challenges of womanhood, highlighting the sisters' emotional connection and shared experiences. As they navigate love, loss, and the complexities of their lives, the narrative delves into themes of identity and resilience. The novel also reflects on the impact of family secrets and societal pressures, ultimately celebrating the strength of sisterhood and the enduring ties of family.