This document discusses registration requirements under the Goods and Services Tax (GST) law in India. It defines a taxable person as someone who is registered or liable to be registered under the GST law. It outlines the thresholds and circumstances under which registration is mandatory, including if annual turnover exceeds 20 lakhs rupees. It also discusses the process and timelines for applying for different types of GST registrations like regular, casual, non-resident taxpayers. Finally, it lists the various forms involved in the registration, amendment, cancellation and other processes.