Interest on late submission of Income Tax Return

SURE U CAN FILE YOUR RETURN IF U HAVE DEPOSITED YOUR ADVANCE TAX OR IF YOU HAVE TDS CERTIFICATE U HAVE NOT TO BE PAID INTEREST. IF U HAVE NOT DEPOSITED TAX THERAFTER U HAVE TO BE DEPOSTIED INTEREST TOO AS PER SECTION 234 U CAN FILE YOUR RETURN TILL 31.03.2009.
 

THANKS

Hi how to calculate interest ? is it from date from the date of year ended or any other date and 1% interest is chargable per month or per annum?
 

ANY RETURN FOR INDIVIDIUAL DUE DATE 31.7.2008. YOU CAN FILE RETURN .BUT YOU FILE AFTER DUE DATE THAN YOU CAN PAY INTEREST WITH PER MONTH 1 %, SEC.234A.

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I want to know if we did not submit Income Tax Ackonwledgment till 31st oct then how much penulty paid per day?