Thanks, Ruchi, and I apologize for the delay.
From the disk management, it does not appear you had a D drive - all I see is a 500GB basic hard drive with a single partition. Either during reinstall, you deleted all the partitions and started over, which essentially removed the data as well or you are being mistaken. Do you remember deleting all partitions during clean install? Even if there was another OS in dual boot mode on your device msconfig must have listed it.
If you want as of now, we can split C drive and make D from it as of now. You would not be able to get data I am afraid.