India can pip South Africa to second position in the ICC Test rankings if they manage to win their ongoing home series against the West Indies 3-0 and provided Graeme Smith's side loses the upcoming two-Test rubber against Australia.
South Africa trail top-ranked England by seven rating points but lead third-ranked India by just one rating point.
Australia are fourth on 104 rating points.
The maximum third-ranked India can rise from their series against the West Indies is to 119 rating points, which they can only achieve if they win all the three Test matches. A 2-0 series win will leave India on 118 rating points, while a 1-0 or 2-1 series win will keep them on 117 rating points.