Was EC biased?

Well it wasn't a huge surprise for me as there was a poor turn-out in this 3rd phase of voting as people got an extended weekend. But what led me think about is, was EC biased in having picked an extended weekend and that too only the BJP and Left strongholds went into election during this time - MP, Guj, Karnataka, Bihar, Bengal and Maharahstra. All these were the areas where BJP was defending its turf and looking to make major gains. Is EC really unbiased? Navin Chawla has to come up with answers. We saw the indifference of EC who advised BJP from fielding Rahul Gandhi whereas at the same time didn't say much in the case of Lalu, a prospective post poll ally of the Congress!