Prime Minister Manmohan Singh will file his nomination for one of the two vacancies of Rajya Sabha seat from Assam on Wednesday.
Assam Pradesh Congress Committee (APCC) President and Rajya Sabha MP Bhubaneswar Kalita said that, Manmohan Singh will arrive in Guwahati around 11:25 am on Wednesday and file his nomination.
Assam state government and police have arranged tight security in Guwahati for the PM´s arrival.
Singh's term comes to an end on June 14. He was elected to Rajya Sabha from Assam since 1991.
The second seat of Rajya Sabha from Assam is also falling vacant due to the end of term of Asom Gana Parishad (AGP) MP Kumar Deepak Das.
Ruling Congress and allies have occupied 94 seats in the 126 members Assam legislative assembly.
Hemo Prava Saikia, an AICC member and widow of former Assam Chief Minister late Hiteswar Saikia is the front runner of the second seat and her home at Sarumotoria in Guwahati has been rented to the Prime Minister.
Apart from Hemo Prava Saikia, the APCC has sent other 11 names including senior Congress leader Abdul Muhib Mazumdar, Dwijen Sarma, Kirip Chaliha, Ranjit Borthakur to congress high command for select the second seat candidate.
"The second party candidate might be announced on Wednesday and both candidates will file nomination papers," a top source of APCC said.
Meanwhile, opposition All India United Democratic Front (AIUDF) will field at least one candidate for the Rajya Sabha poll, which has a strength of 18 MLAs in the state legislative assembly.
AIUDF working president Aditya Langthasa said that, they will hold discussion with other opposition parties of the state to make a strategy against the ruling Congress.
"We have also made a strategy for the Rajya Sabha poll to take an advantage from the dissident group of Congress," Langthasa said.
(Reporting by Hemanta Kumar Nath)