Kolkata, a city deeply enriched in history and culture, boasts an extraordinary collection of architectural marvels that reflect its grand past. It stands out as one of the few metropolitan cities in India with such a profound built heritage that is still around and that remain untouched by the relentless waves of real estate development—and the Calcutta Illumination Project understands this. The city is adorned with remarkable colonial-era structures like the majestic General Post Office with its intricate façade, the imposing Writers’ Building that once served as the seat of the colonial administration, and the serene surroundings of St. John’s Church.