No penalty on assessee who was collecting full CST but paying less amount to Govt. due to partial ex

CST & VAT : Central Sales Tax - Where assessee in terms of notification dated 6-5-1986 was allowed partial exemption from tax payable in respect of inter-State sales for assessment years 1999-2000 to 2001-02, reopening of impugned assessments subsequently on plea that partial exemption was wrongly retained by assessee, as full central sales tax was collected from consumers, was illegal