World champions India brushed aside England by 95 runs in the fifth and final one-day international in Kolkata on Tuesday to sweep the series 5-0.
The whitewash made partial amends for the disastrous tour of England in July-September, when India were routed 4-0 in the Test series to lose the world number one ranking and were blanked 3-0 in the one-dayers.
India have beaten England in 16 of their last 18 one-day internationals at home, losing one and tying the other during the World Cup earlier this year.
"It was a very satisfying win," said Dhoni. "It was good to see youngsters make a name for themselves and they really helped to improve our fielding.
"It was an ugly-looking wicket in this match. You were never really set and it was difficult to score runs. England had a very good start but I was just waiting for it to spin."
Cook said he was disappointed that England lost despite their good start.
"To lose a series 5-0 is obviously not ideal but this one was particularly very disappointing," said the England captain. "We were in with a shout there and we were blown away at the end.
"We know you can lose wickets in a cluster, but we seemed to have lost 10 there in a cluster. It's been a learning curve for this young team, but there have also been a few positives for us, like Steven Finn's bowling for example."
India were reduced to 123-4 before Dhoni hit his way out of trouble, pounding four sixes and three boundaries, to help the hosts put up a challenging total on a sluggish wicket.
The late flourish led by the captain saw India plunder 84 runs in the last eight overs, including 39 off the final 12 balls.
Left-arm seamer Samit Patel claimed three for 57, while fast bowler Finn took 2-47.
Cook and Craig Kieswetter provided the best start for the tourists in the series as they put on 129 for the first wicket by the 21st over.
Both hit half-centuries before India grabbed five wickets for 12 runs to reduce England to 141-5 in the 26th over.
Fast bowler Varun Aaron triggered the collapse by bowling Cook for 60, while Kieswetter was leg-before to Jadeja for 63.
Jadeja then removed the two Jonathans, Trott and Bairstow, in eight balls to open up the lower order.
The rivals will return to the Eden Gardens on Saturday for a one-off Twenty20 international before England return home.
Source: AFP Global Edition