India will have to beat New Zealand in Tuesday's tri-series opener in Dambulla if they are to keep their second spot in the ICC ODI team rankings intact.
If India loses, they will be dislodged by the Kiwis from the second spot but the Black Caps will have to beat Sri Lanka in its next match to cling on to the position on the table.
India, who have 118 points, can strengthen their second position if it wins all its matches which will put it on 125 ratings points.
However, India's failure to win a single ODI in Dambulla will mean that they will drop to sixth position on 111 ratings points.
Sri Lanka can also rise to second position but for this to happen, they needs to win all their four league matches and hope New Zealand wins in either of the two ODIs against India.
Australia are leading the chart with 132 points and New Zealand (114) are placed fourth while the Sri Lanka (111) are sixth behind England (113).
Meanwhile, in the ODI rankings for batsmen, India skipper Mahendra Singh Dhoni (807) leads the field but is only two points clear of South Africa's AB de Villiers.
Dhoni will have to bat consistently well to not only retain the top position but also extend his advantage over the Proteas' batsman.
Sri Lanka's Tillakaratne Dilshan (seventh), Kumar Sangakkara (11th), Virender Sehwag, Virat Kohli, Yuvraj Singh (all 16th) and Ross Taylor (19th) are the other batsmen inside the top 20 who will be eyeing upward movements.
Outside the top 20 are Suresh Raina (23rd), Mahela Jayawardena (31st), Scott Styris (35th), Upul Tharanga (42nd), Rohit Sharma (46th) and Martin Guptill (49th).
New Zealand's Daniel Vettori leads the Player Rankings for ODI bowlers but he will drop points for missing the series as a player loses 0.5 per cent of his ratings points for every ODI he misses.
Sri Lanka's Nuwan Kulasekara is the highest-ranked bowler in third position who will be appearing in this series. He trails Shakib Al Hasan by 17 ratings points.
New Zealand Kyle Mills in the next highest-ranked bowler as his shares fifth position with England's Stuart Broad while Jacob Oram is in 10th spot.
Sri Lanka's Ajantha Mendis of Sri Lanka has a good opportunity to return to the top 10 as he currently sit in 12th position while India's highest-ranked bowler in the absence of 11th-ranked Harbhajan Singh is Praveen Kumar in 15th spot.
In the rankings for ODI all-rounders, the highest-ranked player from the participating sides is Oram who currently occupies sixth position.
Yuvraj Singh is the highest-ranked India all-rounder in seventh position.