How to compute the input vat on stock reversal

What does the 'Stock Reversed" means

i mean if there is Purchases/sales return, then the INPUT VAT paid should nt be eligible for credit..

so if i"m calculating the net vat liability then the vat on Stock reversed is not to be deducted out of total output  VAT...?

r u getting my confusion...?

     In the vat return form itself there should be a column to declare sales /purchae returns.If it is not there you attach a work sheet showing the actual output/input - the returns=net claimed,in both the items.If any query arises in future it can be explained with the help of work sheet attached in your file.......mjk