Luckily for both India and Pakistan, the two best teams of the tournament - South Africa and Sri Lanka are in the other pool. I cannot see either England or NZ beating them so barring a huge mishap, South Africa and Sri Lanka are almost assured of a semi-final berth
As for our pool, you underestimate Australia at your own peril and West Indies are more than capable of defeating both India and Pakistan in the limited overs format esp. if strong gayle force winds blow on the day.
Do not be surprised if neither Pakistan nor India qualify for the semis.