Blue oval ball over Gurgaon sky lineI and my wife had just visited the corner of our mini city where a fair was on with about 300 odd people waiting to to celebrate an indian festival- Dussera While I and my wife were waiting in our car with the crowd before us, my wife observed a blue oval ball in the horizon. What caught our attention was the manner in which it was moving vertically up and down with inconsistent speed and while it kept going up it was getting invisible and then back into its blue color. Now, since we have a lot of local and international flights flying all over us due to the Intl Airport at Delhi, I know that the light could not have been any thing that I can imagine to be usually visible in the area. Can this data be analysed in a more meaningful manner?