Not closing bank jt fd a/c after the demise of 1st holder

I have a Jt FD A/c with my wife in a nationalised bank. After the demise of my wife, the bank has informed me not to close the A/c till maturity. Though the quarterely interest on the FD is credited to my SB A/c regularly. I am paying income tax on this interest every year. As my wife is the 1st holder, TDS is deducted on the interest. So I am paying double tax on this interest. Please suggest me the solution.