"Rahasya Manjari" is a significant poetry book authored by Deba Durlabha Das, published in 1928. Written in the Odia language, it is a notable contribution to the literary landscape of Odisha during the early 20th century. This period was marked by a resurgence in regional literature and cultural identity, partly driven by the broader context of India's struggle for independence and a renewed interest in indigenous languages and traditions. Deba Durlabha Das was an influential poet in the Odia literary tradition. His works reflect the rich cultural and spiritual heritage of Odisha, a region known for its classical literature, temple architecture, and festivals. His poetry often delves into themes of mysticism, nature, and the philosophical quest for truth, embodying a deep sense of introspection and spirituality.