Service Tax GAR 7 challan requires assesseecode, accounting codes, CIN stamping and bank reconciliation compliance. The GAR 7 challan requires a 15 digit Assessee Code, Commissionerate/Division/Range codes, an 8 digit Accounting Code per service, amounts in figures and words, and identical entries on the taxpayer counterfoil. Receiving Bank Branches must stamp challans with BSR code, deposit date and serial number to form the 20 digit Challan Identification Number (CIN), which must be quoted in returns. Receiving and Focal Point Branches must reconcile physical challans, scrolls and electronic data and follow prescribed sealing and serialisation procedures.