Lack of exit polls this time

Because the EC has banned it till the 10th of May. Why?

The only reason I can think of the 10th May date is that other state elections – like the West Bengal one – end on 10th May. May be the EC thinks that exit poll results in Kerala may affect West Bengal elections, etc.

On the whole, publishing exit polls before original results, while giving some good fun to the politics junkies, are useless for democratic purposes. The only use of exit polls is for statistical and demographic analysis: caste, religion, issue, class basis in the voting pattern of a population. And in case of the Kerala-West Bengal situation like the current one, we do run the risk of manufactured exit polls to suit political purposes, and the use of this as a campaign device, disadvantaging sincere, non-rich political parties.