NEW DELHI, March 15 -- The Congress on Thursday completed its internal survey in which it asked boothlevel workers in Delhi what they felt about a possible alliance with the Aam Aadmi Party (AAP) for the upcoming Lok Sabha elections. The results will be analysed by Saturday and sent to party chief Rahul Gandhi, who will take a decision on whether to contest the seven Lok Sabha seats in the Capital alone or in a pre-poll pact with the AAP, according to people familiar with the matter....