The draft model GST law aims to unify various indirect taxes in India into a single Goods and Services Tax (GST), with provisions covering both central and state laws. Key features include the introduction of CGST, SGST, and IGST for intra- and inter-state supplies, a structured registration process based on turnover thresholds, and provisions for input tax credit to avoid tax cascading. It also outlines detailed methodologies for tax liability, returns filing, and payment, making it a comprehensive tax reform initiative.