VAT is indirect tax. Its effect is on the final buyer. It is the duty of seller to pay his net VAT to his state Govt. Now, almost all the state Govt. of India accepts e-return file of VAT. You just go to your bank. Pay your VAT, Get Your Challan No. Open the site of your state's excise and taxation. Just download the excel file format. Fill the required information and your bank challan no. Upload it in same website. This is so simple.
Small Introduction of VAT
"A value added tax was introduced into the Indian taxation system from 1 April 2005. Haryana became the first State in the country that had adopted the taxation on 1 April 2003. Few states Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, Tamil Nadu, Uttaranchal and Uttar Pradesh have opted to stay out of VAT taxation system during the initial introduction of VAT and have then adopted VAT at a later date. Till 2007, VAT has been introduced by more than 30 States/UTs."