An age bar for party posts and a "One Family, One Ticket" rule - with a loophole that exempts the Gandhis among others - is on the Congress agenda as it begins a three-day "Chintan Shivir" in Rajasthan's Udaipur today in the shadow of poll debacles. The rider to the rule, which leaves all three Gandhis eligible to contest, signals a loophole that reinforces critics' views that the party will attempt no more than cosmetic changes at a time there are calls for a big overhaul.