Speaking to news agency ANI, SP general secretary Ramgopal Yadav dismissed exit poll numbers and said the SP-Congress alliance would win a majority.
His comments came a day after two exit polls gave the BJP a clear advantage over the SP-Congress alliance, while two others predicted a close fight between the two formations. The Bahujan Samaj Party was seen as a distant third in all four exit polls available.
Results for the 403-member assembly are out on March 11. The halfway mark is 202.
Exit polls have frequently gone wrong in the past, including in Bihar and Delhi in 2015.