Tax free interest on sale of nhai bonds

Friends,

I have purchased tax free NHAI bonds offering 8.2% interest. Interest would be received on October 1 every year. Current price of the Bond is 1092. The price includes the interest accrued till date from the last record date. If I sell the bonds at the current price, can I segregate the tax free interest from the sale consideration and consider the net amount for computing Capital Gains tax??

Please help.