If South Africa loses to West Indies on Feb 26, and India wins both their games, three teams (India, SA, and WI) will all end up on 4 points.

If SA loses, the two teams with best NRR in Group A, after Super 8 round ends, will advance to semis.

Currently, West Indies (+5.350) and South Africa (+3.800) are far ahead in terms of Net Run Rate. India needs to win their remaining two matches (vs Zimbabwe and West Indies) by a big margin to qualify for semis.

For India, best situation would be South Africa not losing to West Indies on Feb 26 in Ahmedabad.

India need victories over both Zimbabwe and West Indies to reach four points in Super 8 stage.

If South Africa win their remaining matches, they will move ahead strongly, and India - provided they also win both games - can still progress alongside them.

However, if South Africa lose one of their two matches, Group A could see a three-way tie on four points between India, South Africa, and West Indies (assuming India win both).

In that scenario, net run rate will determine the two qualifiers for semifinals. With India currently at -3.800, lowest in the group, slim wins will not suffice.

Should South Africa lose both their remaining games while India win both, then India and West Indies would advance to the semifinals.

Also, if India lose even one of their remaining two matches, they would be knocked out of the tournament. 

Should South Africa lose both their remaining games while India win both, then India and West Indies would advance to the semifinals.

Also, if India lose even one of their remaining two matches, they would be knocked out of the tournament.