The STC number will be alphanumeric. The first part would be the 10-Character PAN issued by Income-tax authorities to the Service Tax assessees (hereinafter referred to as ‘concerned person’) to whom the STC Number is to be allotted. The second part would comprise of a fixed 2-Character alpha code (ST). This will be followed by numeric-code-001, 002, 003, ………. etc. Since all concerned persons requiring registration in terms of Rule 4 of Service Tax Rules, 1994 (hereinafter referred to as the Rules) will be applying for allotment of STC Number, a centralized allotment will be done