In Jharkhand, Congress candidate KN Tripathi brandished a gun following a clash between the supporters of BJP candidate Alok Chaurasia and his supporters.
"Sonia Gandhiji asked us to conduct joint movements with Left Front against Trinamool Congress and BJP in the state," said WB Congress leader Abdul Mannan.
The Haryana assembly elections are scheduled to be held in a single phase on November 2 for all 70 seats. The last date for filing nominations is October 4.
EC has on Saturday announced the dates for the Assembly elections in Maharashtra and Haryana. Both the states will go to poll on October 21 and the results will be declared on October 24 in a single phase.