Meanwhile, Dhoni's gain is Sachin Tendulkar's loss as the master blaster, who missed the tournament due to groin injury, drops four places to number six in the listings.
Dhoni was last at the head of affairs among the world's top one-day batsmen for one week in April 2006 and now, at the conclusion of the Asia Cup in Pakistan, he has only South African skipper Graeme Smith ahead of him.
Dhoni lifted two places in the rankings as a result of his 327 runs during the tournament. He was dismissed just twice in five innings and had a strike-rate of 91 runs per 100 balls.
Australian skipper Ricky Ponting and his teammate Mike Hussey were at the third and fourth place with 751 and 750 points each where as West Indies left-hand batsman S Chanderpaul is at fifth position in the ODI rankings.
However, Andrew Symonds and Kumar Sangakkara climb four spots in the rankings with the Australian all-rounder now in ninth position while the Sri Lankan wicketkeeper a place further back.
Veteran Sri Lanka batsman Sanath Jayasuriya, whose blazing 125 from 114 balls against India in yesterday's Asia Cup final was the climax to a superb series, has returned to the top 20.
Jayasuriya, who finished as the tournament's leading run-scorer with 378 runs, rises 10 places and now lies in 16th slot while his captain, Mahela Jayawardena drops three positions to 27th place.
In the Reliance Mobile ODI Player Rankings for bowlers Australian pacer Nathan Bracken rose to number one spot after an impressive series against the West Indies.
Bracken was the joint-leading wicket-taker in the recently concluded series with eight scalps in five matches, the same as fellow left-armer Mitchell Johnson, who climbs eight places to seventh in the listing, and with a career-high rating too.
New Zealand skipper Daniel Vettori holds the second spot with 761 points while former Kiwi pacer Shane Bond is at the third position.
Sri Lankan off-spinner Muttaiah Muralidaran and his team mate pace bowler Chaminda Vaas are at the fourth and fifth spot respectively.
However, after the loss in the Asia Cup final India slipped to fourth position in the Reliance Mobile ICC ODI Championship table.
World champion Australia move two rating points clear of its nearest rival, South Africa, following its 5-0 demolition of the West Indies in the Caribbean. The home side now languishes in eighth, six rating points behind England.
Sri Lanka's Asia Cup win has Jayawardena's men lying in sixth, four points behind Pakistan and seven back from India. New Zealand is third but it and the rest of the teams are quite some distance behind both Australia and South Africa.
ICC ODI Rankings (Team):
1) Australia (129 rating pts); 2) South Africa (127); 3) New Zealand (115); 4) India (113); 5) Pakistan (110); 6) Sri Lanka (106); 7) England (103); 8) West Indies (97); 9) Bangladesh (45); 10) Ireland (19); 11) Zimbabwe (18) and 12) Kenya (0).
Batsmen: 1) Graeme Smith (RSA 792); 2) MS Dhoni (Ind, 773); 3) Ponting (Aus, 751); Mike Hussey (Aus, 750); 5) Chanderpaul (WI, 744); 6) Tendulkar (Ind, 743); 7) Mohd Yousuf (Pak, 738); 8) AB de Villiers (RSA, 733); 9) Symonds (Aus, 730) and 10) Sangakkara (SL, 729).
Bowlers: 1)Nathan Bracken (Aus, 769); 2) Daniel Vettori (NZ, 761); 3) Shane Bond (NZ, 711); 4) Murali (SL, 707); 5) Chaminda Vaas (SL, 686); 6) Andre Nel (RSA, 682); 7) Mitchell Johnson (Aus, 674); 8) Brett Lee (Aus, 667); 8) Jerome Taylor (WI, 667) and 10) Kyle Mills (NZ, 663).