In all, 525 candidates remain in the fray for the 17 Lok Sabha seats, with Secunderabad having the highest of 45 candidates and Adilabad lowest at 12 candidates.
The Chief Minister had said that she will hold a protest rally in Cooch Behar on Sunday against the firing incident and visit the homes of the deceased.
"It is extremely unfortunate that political battles are thus sought to be fought in this manner instead of being fought in the campaign trail," the EC observed.