TAN
TAN stands for Tax Deduction and Collection Account Number. TAN is a 10 digit alphanumeric number ,used as a acronyms for tax deduction and collection account number. Every assessee liable to deduct tds is required to apply for TAN No and shall quote this no in all tds return.
As per section 203A of income tax act 1961, every assessee who is liable to deduct tds shall quote this TAN No in every communication made with the income tax department regarding the tds return otherwise penalty of Rs 10000 will be charged in case of failure.