[ii] where the credit has accumulated on account of rate of tax on inputs being higher than the rate of tax on output supplies [other than nil rated or fully exempt supplies], except supplies of goods or services or both as may be notified by the Government on the recommendations of the Council:
IT MEANS YOU CAN GET REFUND IF YOU PURCHASE AT HIGHER RATE AND SELL AT LOWER RATE YOU CAN GET REFUND OF INPUT
NOTE- IF YOU FULLY UTILIZE INPUT BY SELLING IN INDIA NOT OUTSIDE INDIA