Delhi engineer claims to have locate Dara Shikoh's grave

Dara Shikoh, the son of Mughal ruler Shah Jahan, who was slaughtered by his own brother, the cruel ruler Aurangzeb is now being recognized after centuries via grave. An engineer from Delhi has claimed to have locate the grave of Dara Shikoh. What is the reality behind the mystery of the tomb and why is Dara Shikoh important for the politics of BJP?