How VAT Avoids double Tac

VAT avoid the cascading effect before vat cost of product increase from the point of manufacturing of goods to pioint where end consumer consume the goods and at every stage trader or manufacturer has to pay tax on tax which was already suffered by previous trader or manufacturer in other word by allowing the credit on the purchase of goods vat avoid the cascading effect now at every stage whether it is trading stage or manufacturing stage both the trader or manufacturer has to pay tax on valued added by such manufacturer or trader

Thanks for your reply Amit. thanks