Election for 15 Rajya Sabha seats across 3 states will be held today amid concern about cross-voting by Congress and the Samajwadi Party MLAs. Three seats hang in balance -- one each in Uttar Pradesh, Congress-ruled Karnataka and Himachal Pradesh. 41 leaders for 56 seats have already been elected unopposed. The list includes former Congress chief Sonia Gandhi, BJP chief JP Nadda, Ashok Chavan and Union ministers Ashwini Vaishnaw and L Murugan. For 15 seats, elections are due in Uttar Pradesh, Karnataka and Himachal Pradesh.