GoAir reschedules flights on a regular basis. I chose GoAir since it was the first flight out at 6. 45 am ; I got a reschedule message and it was delayed by 4 hours. This is not the first time with GoAir. After I did a little research online, I realized it was a change in the winter schedule and not due to operations reasons. So this information would have been available with them more than a month in advance, yet they continued to take bookings using the old timing. The cabin cleanliness and other basics were good.