Presiding officers have been asked to use their powers under electoral laws to use central foces deployed in polling stations to prevent any "untoward" incident.
Besides the sector magistrate, who is in charge of 10 polling stations, the EC has also decided to deploy static magistrates in sensitive booths polling stations to respond immediately to complaints.
The EC said the decision to enhance security measures was taken in the wake of large scale complaints and suggestions made by political parties.
While 64 constituencies in seven states will go to polls tomorrow, another 41 seats in three states will go to polls on May 12, the last of the nine-phased electoral exercise.
Zutshi said the Booth Level Officers (BLOs) have now been asked to keep an eye on happenings in polling stations and report any untoward incident to the observers or sector magistrates.