Post 0004...

Now this is an open challenge Identify the duo...

Answer:

Mikoyan and Gurevich it is!!!

The people behind the legen.... dary MiGs

FYI the MiG-21 is one of the world's best selling (or sold ) interceptor  aircraft so far... 

No doubt in Indian context its a bit to (in)famous.

Sateen and Kaushik both got it right!!