<h1>India Migrates Central Excise and Service Tax Assessees to GST System; Update Details on GSTN Portal for ARN.</h1> The Government of India is facilitating the migration of Central Excise and Service Tax assessees to the Goods and Services Tax (GST) system, scheduled for implementation on April 1, 2017. Assessees with a valid PAN will receive provisional GST registration, with IDs and passwords provided through the ACES portal. The Central Board of Excise and Customs (CBEC) is organizing seminars and workshops to assist taxpayers in this transition. Assessees must update their details on the GSTN portal to receive an Application Reference Number (ARN) and complete the migration process. Guidance and support are available through CBEC's helpdesk.