Tax treatment for interest on lac

Hi, A land belonging to my father was acquired by karnataka govt in 1990. My father is no more and we children were paid interest on the compensation amount but there was a tax deduction at source of 10% under 194A. Now how do we get refund for the tax deducted as the interest accumulation is for the period of more than 25 yrs. How do I show in my returns that the interest when spread for 25 yrs is way small for any tax deduction. Thanks in advance