The new ICC rules make it mandatory for the teams to have five fielders inside the circle and use two new balls from each end.
"It was certainly not an ideal start but more than the result, we were looking about executing our plans. The new ODI rules were a bit difficult and we were spinning our heads around it," said Tredwell at the post-match press conference.
"The first match in Rajkot will be very important and it will be nice to play in venues which are warmer than Delhi," he added.
Tredwell conceded that the bowlers need to lift their game after being hit by batsmen from the second string Indian side.
"We will certainly not trying to blast them off with our pace but we need to bowl straight. The positive thing from this match was that our batsmen got to spend time in the middle which did not happen in the last game," he said.
England play the first of the five-match ODI series against India in Rajkot on January 11.