By now I am sure u all have find out that this article and teh prediction of Super Eight matches are completly hyped and rumours. India will play pakistan either on April 15th or on April 19th depending on group stage standing of both India and Pakistan in respective group.
The following example is not correct as per the writer.
For example, if South Africa wins Group A and Australia comes second, for the purposes of the Super Eights, South Africa will still be A2 and Australia will be A1."
A1 will be the team who will stand 1st in its group and similarly A2 will be teh second scored team in the group.
Assuming there is no upset, India has to loss to SL in group stage and Pakistan has to win against WI so that they can meet on April 15th.