GST registration in India is an essential process for businesses in greater of provided earnings limits or companies that engage in interstate trade. Input tax credits for purchases and the lawful collection of GST are made possible by it. The registration process requires the submission of important paperwork through the GST portal, including PAN, Aadhaar, and business information. Companies that register get a unique GSTIN, which provides transparency, compliance, and simple tax management under the single tax system in India.