User blog comment:GunsnadGlory/The Mughals Stay/@comment-4621372-20120706114238/@comment-1630894-20120708152731

According to the wikipedia page that you yourself cite Guns, Dara Shikoh was already losing the battle when he got down from his elephant:

"Darah Shikoh faced heavy bombardment by the cannon front of Aurangzeb, the bombardment even made its way into the cannon front of Dara Shikoh causing massive disarray among his ranks. Due to Aurangzeb's heavy bombardment Dara Shikoh decided to join Khalilullah Khan in the Calvary."

The bombardment had devestated his ranks, the reason Shikoh got off his elephant was because his plan to charge Murad Baksh had failed. He was already losing before he got down from the elephant.