I’m a frequent enough visitor to Heathrow’s Terminal 3 and can confirm that Jet Airways use this particular terminal for their flights. I was really disappointed last Easter when I was walking to the gate for my EVA Air flight to Bangkok and passed the Jet Airways Mumbai gate, but it was too dark to see the A340 parked just a few metres away!

As for exits, I’m confused as well. There is just one main entrance/exit.

Yea just wanted to know fi there is one main exit/entrace or there are multiple. 🙂