Election rallies by star campaigners of Congress would begin from Saturday with Congress president Sonia Gandhi addressing rallies at Kahalgaon and Wazirganj constituencies on the day.
Top Congress leaders would be holding election rallies in all 41 constituencies where the party is fielding candidates for the elections.
This would be the first visit by Gandhi to Bihar after the formal announcement of elections.
She is expected to hold election rallies in the state on October 17 to cover Buxar and Manjhi constituencies and again on November 2, where she would address the people in Benipatti and Araria constituencies.
Meanwhile, national Congress vice-president Rahul Gandhi, who held a public rally last month at Ramnagar, would be in the state on October 7 to address election meetings at Chenari, Barbigha and Bachhwara constituencies.
State Congress leaders said, he would also be back in the state on October 26 for rallies at Valmikinagar, Govindganj and Riga and would then visit Purnia, Pranpur and Korha constituencies on October 30.
Besides them, the other main campaigners includes party general secretary Shakeel Ahmed, who is expected to conduct rallies on October 7 and 8, Raj Babbar, who is expected on October 8, 9, 11, 15, 16, 28, 29 and 30 and Ghulam Nabi Azad, who is expected to hold rallies here on October 5, 6, 8 and 9.
Former Union ministers, Jyotiraditya Scinida and Sachin Pilot, are also expected to address rallies in constituencies where the Congress is fielding candidates.