With so many Congress leaders including Manmohan, Mukherjee and now Sonia bringing up the foreign policy and sovereignity issue, I start to suspect there must be something wrong, innit?... ;-)
As to who brought independence, it was a collective effort. At best Indian National Congress might have played a part ... not this present Indira Congress.. ;-)
Past sacrifices (if at all) are no guarantee that the party will not betray national interests in future... hope she knows at least this much logic... ;-)