Kolkata: The Election Commission on Wednesday cut short the campaign period in West Bengal by a day for the final phase of Lok Sabha elections in view of the violence during BJP president Amit Shah's roadshow on Tuesday.

"No election campaigning is to be held in nine parliamentary constituencies of West Bengal, namely Dum Dum, Barasat, Basirhat, Jaynagar, Mathurapur, Jadavpur, Diamond Harbour, South and North Kolkata, from 10 pm tomorrow till the conclusion of polls," Deputy Election Commissioner Chandra Bhushan Kumar told media.