16 November 2009
little confusion in your question. Tax payment: tds-every 7th of previous month ser tax-every 5th of previous month. pt-every 20th of previous month. vat-every 20th of previous month.
for Returns tds-25th of previous quarter ser tax-25th previous half yearly pt-every 20th of previous month vat-every 20th of previous month.
this will be applicable for companies not firms or proprietory business.