The Festival Economy Insights project explores how major cultural events like Diwali, Durga Puja, and Christmas impact economic activities such as consumer spending, business sales, mobility, and online engagement. Using open datasets from Google Trends, government portals, and e-commerce reports, the project compared festival and non-festival periods to measure percentage changes in sales, footfall, and sentiment trends. Data visualization tools such as Matplotlib, Plotly, and Tableau were used to present key insights through charts and dashboards. The analysis revealed that festivals significantly boost retail demand and alter mobility and digital engagement patterns. Overall, the project highlights how data analytics can capture the economic pulse of cultural events, offering valuable insights for retailers, marketers, and policymakers to make informed, data-driven decisions during festive seasons.