To complete the act of terror I speak of, spotting the airplane means nothing, even over India, shooting it down would kill at least dozens from the debris. I think you overestimate the ability if a military to identify the airplane and shoot is down in the time it would take to reach target. Repairs on landing gear is easy, many a days or two of work. Fuel is easy to get. I can drive 5 miles to my nearby airport and buy 200 gallons. People do it all the time (my friend works there). With some time, that 777 could be back in the air and be bound for India, Thailand, or Dubai. As for spotting it, idk where you are, but under the jet stream, dozens of flights go overhead each day, you stop noticing it after a whole. After two months, people won't be on high alert for a 777, you can't stay watching forever...