India, March 5 -- All eyes will be on the final day of filing nominations for the upcoming Rajya Sabha elections on Thursday in Patna amid speculation that Bihar chief minister Nitish Kumar may submit his papers for the Upper House polls.

People aware of developments indicated that Kumar, 75, may transition to the Upper House, just months after winning a historic victory in the assembly polls. Kumar's son Nishant Kumar, who is set to join the Janata Dal(United) on Thursday, might be inducted as a deputy CM, the people cited above said. If Kumar moves to the Rajya Sabha, his successor might be from the Bharatiya Janata Party, added the people cited above.

"Nitish Kumar in all probability would be filing his papers on Thursday. This is al...