Airport delays in India?

On Saturday, I suddenly had to go to New Delhi and flying was the only option available due to such a short notice and the urgency.

Before "economy" airlines did not exist in India, flying was simply luxury and there were hardly two or three domestic airlines flying to Ahmedabad. A revolution three years ago has changed this and now, there are about 10 different domestic airlines flying to Ahmedabad.  Couple of years ago, only economic airline flying to New Delhi was Spicejet. Now, GoAir, Air Deccan and Jetlite have flight to New Delhi.
So, I checked with these airlines to get the best price and found that they all had almost same prices. and I checked different airlines for the best prices and all were showing similar prices. Since I have Online booking and then talking to higher authority in Spicejet helped in bringing the cost almost same as that of train travel. I had about 35Kgs of luggage with me and that was 15Kg more then Spicejet's allowed limit.
Again, a connection with higher authority helped in sorting this out. Spicejet people at Ahmedabad airport were informed about my coming there and the manager sent a person to trolley my luggage to the x-ray machine and then to the check-in counter. He checked me in and I got my boarding pass. As I was walking to the security check area, Spicejet announced about 1 hour delay in the flight... That 1 hour delay was further extended to 2 hrs and my flight left for New Delhi at 10pm.  When the flight landed, it was almost midnight and by the time I reached the office, it was 1am.
My return flight was surprisingly on time and we were boarded as per scheduled time. As I had long days and sleepless nights, I fell asleep as soon as I boarded the plane. I got awake by some noise after an hour and I found myself still on the runway... the flight had not taken off due to congestion on the runway... Flight landed Ahmedabad at 10:15pm and instead of parking at the bay, the plane was parked in one corner of the airport as all parking bays were full. Coaches came to pick us up and by the time we reached to the luggage belt, it was 11pm....

I found that air traffic in Ahmedabad has really increased very much in recent time. Even the airport has been upgraded to accommodate more passengers and provide better facilities. Many international flights land here but it has to go much beyond to be a true international airport.

Airport delays in India usually were not significant as flying was not cheap. Hardly a flight had to wait on the runway to take off. Hardly a flight had to circle in the sky to wait for a clearance for landing.

I also observed that due to economical airlines, flying has become very affordable. Earlier, when you were flying, you would expect either a government officer, a corporate employee or a business person in a seat next to you... but nowadays, one should not be surprised to find a farmer or an ordinary office clerk as your neighbor in a flight.