Kolkata, Oct. 29 -- The recent spate of one-sided results validates the theory that India-Pakistan isn't a top rivalry anymore. England have come up several notches but even they were comprehensively beaten at home earlier this year. With Australia however, a rivalry has slowly evolved that tends to keep you on the edge of your seat, home or away. In Tests definitely, but also in T20 purely because of the brevity of the format and the unpredictability it entails. Which is why the five-match series, beginning in Canberra on Wednesday, is poised to be a powerplay to the T20 World Cup a few months down the line. India are No.1, Australia No.3. This series is in Australia, while India will defend their T20 World Cup at home. But the difference ...