As per Board's circular F. No. 96/85/2015-CX.I, dated 7-12-2015 recovery of admitted liability (here interest which is unpaid) can be made without issue of SCN and adjudication proceedings.
PARA NO.B 40
The conference after due discussion did not agree with the proposal to amend the rule and provide for escalation in penalty for continued default. With regard to implementation of the rule as it exists, it was noted that non-payment of duty duly reflected in a Return is a case of admitted liability. Provisions of section 11A(16) introduced in the budget of 2015 are relevant in this regard wherein it has been provided that provisions of section 11A do not apply for duty which has been self assessed, reflected as payable in the Return but has not been paid. The implication of this sub-section is that for admitted liabilities no show cause notice and adjudication proceedings need to be undertaken. For such liability, provisions of rule 8(4) of the CER, 2002 apply. This rule provides that provisions of section 11 of the Act shall be applicable for recovery of duty, interest and penalty in case of default. The conference concluded that recovery of admitted liability thus can be initiated forthwith once the return has been filed and duty shown payable has not been paid. As the legal empowerment is available, necessary recovery can be made forthwith.