guys,
from previous personal experience, i surely know that jet doesn't do "who is your daddy" thing you guys are imagining. may be if you clear gd and you are super powerful that you can wring jet's neck, may be the interview stage can be a cakewalk. otherwise they are pretty clear as to hire on merit policy.
focus on gd preparation as jet is good at making you wait for ever. all the wait is going to make to unfocussed and lax in preparation.
GD advice: Preparation should focus on how you are part of a team. there are 5 different tasks. you can search the previous batch thread. there are lot of inputs. Just be yourself is the common and most accurate advice you get. So be yourself or make yourself a better person.
Good Luck