India says that it is not buying F-35 fighter aircraft. But is there anything else in the story? The powerful S-400 missile system is already with India and China, so is there no benefit now? To understand what is really behind this silence.

India says that it is not buying F-35 fighter aircraft. But is there anything else in the story? The powerful S-400 missile system is already with India and China, so is there no benefit now? To understand what is really behind this silence.