India won the second and final Test against New Zealand by five wickets to take the series 2-0. Ashwin was the Man-of-the-series with 18 wickets in two matches.
Ojha too dazzled with the ball, accounting for 13 dismissals.
Talking about Ashwin, Dhoni said: "He (Ashwin) is bowling brilliantly."
"If you see both Tests, there was some periods where the spinners got some assistance from the pitch. Overall, the wickets were quite good to bat on and we had to bowl consistently in one area which I felt at sometimes made it difficult for Ashwin because he is someone who loves to take wickets. He is someone who has got variations. He is learning that."
"The good thing is that both the spinners complement each other. When one is taking wickets, the other one keeps it tight so that the batsmen are not taking too many runs off them. They (Ashwin and Ojha) are hunting well together."
Of the 40 wickets to fall in the series, Ashwin and Ojha accounted for 31.
For Ashwin, it was his second consecutive Man-of-the-series award in home Tests. He had taken 22 wickets in the last year's three-match series against West Indies. He now has 40 wickets in five Tests on Indian soil. Overall, his tally is 49 in eight Tests.