India edged past Korea 2-1 in the Azlan Shah tournament, having suffered a 1-5 defeat against New Zealand earlier.
"I'm obviously delighted with the result. The victory from a last-minute goal made my heart's pacemaker began functioning again," said Nobbs.
"We made a silly error to concede the penalty corner that gave the equaliser to South Korea. That was part of the mistakes we committed in the second half," he added.
The Australian was not happy with the way his wards played in the second-half but said the win was good gift for him.
"We played according to plan in the first half, but in the second half we did not play as we wanted to. We did not stick out our plan in the second session, but did well in patches," he said.
"I was really angry at the mistake that gave away the equaliser. But the last-minute goal was a nice present."