The implementation of the Goods and Services Tax (GST) in India marked a significant reform in the country’s indirect taxation system. This study examines the impact of GST on India's economic growth by analysing its influence on key economic indicators such as Gross Domestic Product (GDP), inflation, ease of doing business, and government revenue. GST, as a unified tax structure, replaced the complex multi-layered tax system, aiming to eliminate cascading taxes, promote tax compliance, and enhance economic efficiency. The study evaluates both the short-term disruptions and the long-term economic benefits of GST. While the initial phases of implementation witnessed challenges, including compliance difficulties and technical issues, subsequent adjustments showcased its potential to streamline the taxation process and create a unified national market. Empirical evidence suggests that GST has improved tax collection efficiency and fostered interstate trade, contributing to economic growth. However, concerns such as uneven sectoral benefits, compliance burdens on small businesses, and state revenue imbalances persist. This paper highlights the need for ongoing reforms and better governance to maximize the economic gains of GST. The study concludes that while GST has positively influenced India’s economic growth trajectory, its true potential can be realized through continuous refinement and stakeholder collaboration.