This slipped my mind as well even though Caribj and I have been saying this for ages in almost every other post here since the beginning of the Election campaign.
The internal polls being leaked which point to a statistical dead heat between the Coalition and the PPP appear to be affected by an undercount of the Indian voters in the sample which means that PPP support is being significantly underestimated.
There is almost no way that the PPP is performing slightly lower than its 2011 Election percentage of the vote which is what one recent poll suggests. The same poll also shows the statistical tie. I cannot believe the PPP is doing so badly and the Coalition is also doing so badly so another unaccounted for factor must be skewing the results of this poll. And that factor is that the sample of Indian voters is too small and PPP support is being undercounted. Also, there appears to be in one instance an undecided lot of 5 parliamentary seats.
Therefore, for all the foregoing reasons this Election is not a tie and the PPP should be in the lead (though I have not seen a poll showing this lead just statistical ties) thought not quite over the 50% mark. That's guessing territory.