Capital gains on sale of TDR

An agricultural land was compulsorily acquired and TDR was received against it with Rs. 0 cost of acquisition. Now TDR is sold subsequently. So will capital gains tax arise in this case i.e on sale of TDR? Or will this TDR be exempt? Can you please suggest any suitable case laws? And also - if tdr is taxable then can we take the cost of acquisition of land as per valuation of 2001 for indexation purpose to calculate capital gains?