This research paper presents a comprehensive comparative analysis of Offer for Sale (OFS) and Initial Public Offering (IPO) performance on the Bombay Stock Exchange (BSE). The study explores the structural, regulatory, and market dynamics influencing both instruments, evaluates investor participation patterns, and assesses their impact on company financing and stock liquidity. A substantial literature review underpins the analysis, highlighting established findings on IPO behavior and emerging insights on OFS. Using recent market data from 2024–2025, this paper concludes with strategic implications and directions for future research.