This document discusses India's indirect tax system pre-GST. It notes that previously, the central government levied excise duties on manufacturing while states levied VAT on sales. Taxation of inter-state sales was complex. There were multiple taxes like excise duty, VAT, CST, octroi, with different taxable events and authorities. This led to challenges like tax cascading, complex compliance, lack of transparency, and litigation around classifications and exemptions. The goal of GST was to integrate India's indirect tax system and address these pre-existing challenges.