And I say you are wrong. Grossly wrong. It has everything to do with radars.
I will clear this up and if the Indian members here are smart, they should remember/save what I say to spare themselves and their country some embarrassment.
Birds, insects, and flora are called 'volumetric targets' in radar detection.
A 'volumetric target' is a radar target that is composed of many individual members/contributors whose individual radar reflections interacts with each other to create a radar return that is calculated to be a monolithic body.
Here...
Target Interaction and Image Appearance | Earth Sciences
Volumetric scattering...multiple bounces and reflections from different components within the volume.
If a single bird drops out of the flock, the target's radar return is decreased slightly but the bird itself
WILL NOT be detected. There are radars designed specifically to detect individual bird or even an airborne bee but that is for a different subject. But for what we are talking about here, the individual bird or bee or leaf will not be detected when that component is separated from the mass.
There is nothing out of the ordinary about this event. It is funny but ultimately harmless and perhaps even a credit for the Indian defense because it shows they are alert.