11 September 2014
Section 234C is for Interest on deferment of Advance Tax. Interest is payable @ 1% for 3 months on the amount of shortfall in payment of advance tax became due on 15th June (applicable only to Corporate assessees), 15th September (all assesses) and 15th December (all assessees) and interest @ 1% on the amount of shortfall in payment of advance tax became due on 15th March (all assessees).
Interest on 234C is not applicable to Senior Citizen having income from any source other than business income.
Please also note that in case of salaried employees, the advance tax liability is to be computed on the income other than salary income. TDS deducted by the employer is not to be adjusted against this liability.