Date of clearance of cheque in case of advance tax

Karishma Jain (articles) (60 Points)

04 April 2012  

Assesse has paid ADVANCE TAX BY CHEQUE before 15.04 but the cheque has been cleared on 18.04 

In the  intimation U/S 143(1) electronically generated they have calculated  INT U/S 234C,

what should the assessee do??rectification request was rejected.
Appeal????