Conservationists working on a forgotten Gahadavala-era Sun Temple in the Mirzapur district of Uttar Pradesh have discovered a series of intentional acoustic vents built into the sandstone walls. These vents appear to have been designed to amplify the resonance of Vedic chants and temple bells within the garbhagriha (sanctum sanctorum).
The restoration project has also revealed hidden friezes of solar deities and zodiacal symbols that were previously obscured by layers of lime plaster. Experts believe this temple served as both a spiritual hub and a local astronomical observatory, utilizing the play of sunlight through specific apertures to mark the arrival of equinoxes.