Siddheshwar Temple, picturesquely situated in the middle of the Siddheshwar Lake (also known as Hipparga Lake) in Solapur, Maharashtra, is the most important temple in the city and holds deep historical and religious significance, particularly for the Lingayat community. The temple is primarily dedicated to Siddheshwar, who is revered both as a form of Lord Shiva and as the 12th-century Lingayat saint, yogi, and social reformer, Shree Siddharameshwar. Siddharameshwar was a contemporary of Basavanna (founder of Lingayatism) and is credited with numerous socially beneficial works in Solapur, including the creation of the lake and the consecration of 68 Shivalingas within the temple premises. He eventually attained Jeeva Samadhi (conscious departure from the mortal body) at this very site, making it exceptionally sacred. The temple complex, located on an island connected to the banks by three causeways, enshrines both the main Shivalinga (representing Lord Shiva) and the samadhi shrine of Saint Siddharameshwar, attracting devotees who worship both. Architecturally, the temple reflects influences potentially from the Yadava or later medieval periods, with subsequent additions and renovations, likely including Maratha-era contributions. Besides the main shrines, the complex contains smaller temples dedicated to other deities like Vithoba and Rukmini, reflecting the diverse devotional traditions of the region. The temple is most famous for the annual Gadda Yatra, a spectacular fair held during the Makar Sankranti festival (mid-January). This fifteen-day event commemorates the symbolic marriage ceremony of Saint Siddharameshwar (considered a yogic marriage) and involves processions, rituals, cattle fairs, and attracts hundreds of thousands of pilgrims from Maharashtra, Karnataka, and Andhra Pradesh. Siddheshwar Temple thus serves not only as the Gramadaivata (presiding deity) of Solapur but also as a major Lingayat pilgrimage center commemorating the life and legacy of Saint Siddharameshwar.