The Assam Congress' 'Bharat Jodo Yatra' reached Guwahati with opposition party Raijor Dal also joining the long march.
All India Congress Committee general secretary Jitendra Singh, state Congress presidents of Assam, Sikkim, and Manipur, former Arunachal Pradesh CM Nabam Tuki and other leaders participated in the 8-km march through the streets of the city, party spokesperson Manjit Mahanta said.
"More than 500 people joined the march on Thursday (Nov 17)," he said.
The Congress, the main opposition party in Assam, had on November 1 started the 'Bharat Jodo Yatra' from Dhubri district and planned to cover a distance of 834 km in 70 days.
Besides the main 3,570-km Kanyakumari to Kashmir yatra, the Congress is organising several sub-marches in states from where the main yatra will not pass, PTI reported.
The Congress' spokesperson said delegates of Raijor Dal joined the rally in the city and extended its support to the programme.
"The Raijor Dal is supporting our yatra as it wants to deter the BJP's expansionist designs," he said.
The Congress spokesperson said other opposition parties of the state and prominent citizens will join the rally on Friday, which had already passed through Chief Minister Himanta Biswa Sarma's Jalukbari constituency on Wednesday.
The march will culminate at Sadiya in the easternmost part of the state, the spokesperson added.