Section 244A(1)(ii)

(ii) from the date of furnishing of return of income to the date on which the refund is granted, in a case not covered under sub -clause ( i); (aa) where the refund is out of any tax paid under section 140A, such interest shall be calculated at the rate of 5[one-half per cent.] for every month or part of a month comprised in the period, from the date of furnishing of return of income or payment of tax, whichever is later, to the date on which the refund is granted: Provided that no interest under clause ( a) or clause ( aa) shall be payable, if the a mount of refund is less than ten per cent of the tax as determined under sub -section ( 1) of section 143 or on regular assessment;]