To request a Letter of Good Standing to sell your business, complete form TC-42S, Application for a Letter of Good Standing for a Successor in Business. Phone: 801-530-4849 or 1-877-526-3994Click "Send Request" to submit your request for authority. Once approved, you'll have the selected privileges. Call TSA Cares (855) 787-2227 to request assistance. TSA Cares assistance is only available for assistance through the screening checkpoint. B) Professional tax registration certificate. Kolkata-700 091. 33. Assistant Commissioner of State Tax,. Goods and Service Tax, Postabazar and Burtola Charge,.