Dhoni hit the winning runs, a pull off Steven Finn towards square leg boundary, as India thrashed England by seven wickets in the third ODI to go 2-1 up in the five-match series.
Asked about his promotion to number four, Dhoni, who normally bats at six, said, "It was not really his decision. I was sitting next to Raina who was up next and he said why don't you go there. It did not look like a wicket would fall but fortunately or unfortunately Yuvraj got out and I had to come.
"I understand the fact that people would love to see me bat up front with the match being held in Ranchi. But priority was to win the match. I am not here just to entertain the people of Ranchi. So we used our best option at that point," he said at the post-match press conference."
Asked whether hitting the winning run was the most special moment, Dhoni refused to rate any.
"There are quite a few ones. It's difficult to remember as you live in the present. It's difficult for me to exactly remember the 2007 World T20 that we won, and even the last one -- the fifty-over World Cup. There are quite a few moments that we really enjoyed," he said.
"It would be difficult for me to rate. But in the end, I would like to say that it's one of the best stadia. Overall there was very good playing and the execution was perfect."
Giving credit to his bowlers for bundling out England for 155, Dhoni said it's good that India now have a big pool of bowlers with the experienced ones nursing injuries. MORE