https://www.taxtmi.com/caselaws?id=76615 Permission granted for procurement and processing of nylon yarn under Rule 191-BB and Notification No. 33/90-C.E. (N.T.) could not be withdrawn retrospectively in the absence of any breach of the attached conditions. The later communication withdrawing permission stated that it would take effect immediately, and the clearance and processing in dispute had already been completed while the earlier permission remained operative. On that basis, the subsequent withdrawal could not invalidate acts lawfully done before it, and no retrospective power was shown to undo the earlier permission. The duty demand on nylon yarn and tyre cord fabric was therefore unsustainable. en-us Mon, 07 Dec 2009 00:00:00 +0530 Tue, 13 Jul 2010 08:06:00 +0530 TaxTMI RSS Generator https://www.taxtmi.com/caselaws?id=76615 Permission granted for procurement and processing of nylon yarn under Rule 191-BB and Notification No. 33/90-C.E. (N.T.) could not be withdrawn retrospectively in the absence of any breach of the attached conditions. The later communication withdrawing permission stated that it would take effect immediately, and the clearance and processing in dispute had already been completed while the earlier permission remained operative. On that basis, the subsequent withdrawal could not invalidate acts lawfully done before it, and no retrospective power was shown to undo the earlier permission. The duty demand on nylon yarn and tyre cord fabric was therefore unsustainable. Case-Laws Central Excise Mon, 07 Dec 2009 00:00:00 +0530 https://www.taxtmi.com/caselaws?id=76615