Goods and Service Tax (GST) is a comprehensive tax on goods and services in India, aiming to simplify the tax system and create a unified national market. By replacing multiple taxes with a single tax, GST reduces double taxation and promotes fair competition, ultimately boosting the country's GDP. The key benefit of GST is its ability to curb tax evasion. With a centralized registration process similar to service tax, GST streamlines tax administration and ensures compliance.