Tewari filed his nomination papers today and Kanaklata yesterday for two Rajya Sabha berths from Uttar Pradesh.
The byelections for two seats arose following the death of Kanaklata's father Mohan Singh, an SP leader and noted socialist, and disqualification of Congress member Rashid Masood.
As the nominations for the two seats drew to close this evening, only Tewari and Kanaklata are in the fray and both are all set to elected unopposed to the Upper House.
Flanked by state Congress chief Nirmal Khatri and party legislators, Tewari filed his nomination before the Returning Officer at the Vidhan Sabha secretariat here.
Scrutiny will be held tomorrow and the last date of withdrawal is December 12.
