Air India - Too much delay

The Air India flight number AI*** which was supposed to take off at * am. And all the passengers were seated inside the flight ** mins before the take off. I took my seat at *:** am and now it's been *:** am we all are suffering. We asked about the issue and crew's reply was "their's a technical issue". Now the question is Why the issue is been checked prior before the take off. Are we supposed to suffer for this. None of the crew nor the pilot is answerable about how long will it take to solve the issue. Many passengers have a connecting flight at Delhi. Even I've a connecting flight at Delhi. We know that the airline will manage the further flights and all but the time which is wasted and their are small kids and infants who are suffering too. Most importantly this is the first time I'm suffering. I'm traveling for the *nd time in the morning hours in Air India and both the time I was suffered. Last time the flight got cancelled. Now we are all wondering how long will it take to fly from Bhopal.