NEW DELHI: AAP's support has shrunk drastically in the last two months while the Congress has rebounded just as impressively, making the battle for Delhi's seven Lok Sabha seats genuinely triangular, according to an opinion poll done for a TV channel.The channel, which had predicted six seats for AAP and one for BJP in both January and March, leaving Congress with a blank slate, has now projected that Arvind Kejriwal's party and the BJP will win three seats each and the Congress one.The poll, done by AC Nielsen for ABP News, had in January projected a 55% vote share for AAP, 29% for BJP and a mere 9% for the Congress. By its February poll, those numbers had shifted to 49% for AAP, 30% for BJP and 14% for Congress. The March poll suggests that AAP's vote share would be 34% and the BJP's 32%, while the Congress would mop up 28% of the votes.Over the two months, therefore, what the poll is suggesting is that there has been a 21 percentage point decline in AAP's base and an almost equal 19 percentage point accretion to the Congress vote share. The BJP, in the meantime has gained three percentage points.Given the fact that the error of margin for vote shares is plus or minus 5%, what the latest projection really means is that all three parties could be neck and neck.