Input vat reversal

You cannot adjust your input VAT on purchases against CST payment. and also what ever input available against that purchase you can use for other goods output VAT payment.

And also need to pay CST 

Against C form Input Credit is available i guess.

only if C Form not issued ITC Reversal need to be done.

am i right ? please correct me if am wrong

CST and VAT both are different, you cannot adjust VAT input against CST,even sales against C form also