This paper explores the annual Uthra Śīvēli festival at the Śrī Vallabha Temple in Thiruvalla, highlighting the increasing public visibility of religion in Kerala and the socio-cultural transformation during this Hindu festival as the devotees come together. Annual festivals are a central feature of the South Indian religious tradition. More importantly, festivals unite people and places as devotees share devotion. This paper examines the festival and elucidates its transformative potency by discussing how it plays a role in socio-religious transformation, transcending caste and social boundaries in South India. I argue the dynamic interactions between deities and devotees that occur during the festival not only transform the space into a "religioscape," connecting lived and imagined worlds through ritual practice, but also promote socio-cultural transformation, problematizing our understanding of the social dimensions of caste and its historical religious valorization.