I was not at all disappointed with my team's results in the 96', 99', 03' and 07' World Cups. Simply because I have always been realistic with my expectations.
In the 96' World Cup, we weren't a very strong ODI team. But that tournament was held in the subcontinent. We punched above our weight by reaching the semis.
In the 99' World Cup, although I was excited, I did realize that were better teams than us.It didn't hurt me much.
In the 03' World Cup, I was expecting the least from my team keeping in mind the horrible tour we had in New Zealand prior to that. We were a disaster in our second match in that World Cup when the Aussies trashed us. There were so much criticism and street demonstrations by fans in India after that match, Sachin had to come out and request them to keep patience. As usual, Indian fans listened to his request. And once against we punched above out weight and reached the finals. Once again, I was not devastated after the finals. A little disappointed, but not devastated. Simply because in my mind I knew that the Aussies were too strong for us.
2007 World Cup was a disaster for us. My father was battling for his life in the ICU of Guwahati Medical College Hospital back then. He was suffering from Sepsis. He recovered from the jaws of death. That World Cup didn't affect me at all because I had far more issues to come to terms with.
2011 World Cup was the first time I really, really expected my team to win the tournament. Thank God, we did.
2015 World Cup. This was one World Cup where I was really, really disappointed. I really expected India to somehow win it. It hurt me really bad when we lost in the semis against the Aussies.
Now coming to the upcoming World Cup this year. Once again, I'll be honest. I'll be really, really disappointed if we don't win it. I mean I know ODI cricket is simply unpredictable. We can be knocked out in any of the KO matches, provided we reach that stage. All it takes for is one bad match for us to be knocked out if we reach that stage. But I'm still optimistic and hoping we win this one.