You wil hve to pass thru the red channel or the green channel anyway. Coz the departure is on the upper floor and u have to cross the main street, as far as i Know and fyi, dont drink the apple juice on Jet Airways. It smells like DDT. Ask for the plain old beer. and oh, the departure lounge will cost u Irs.30 if u are going their 6 hours in advance of yr flight. but its worth it may god speed you