The ruling BJP and the main opposition Samajwadi Party released their manifestoes on the last campaigning day
Polling will take place for 58 assembly constituencies spread across 11 districts, out of the 403 seats in the state, on Thursday.
The districts where the elections will be held are Shamli, Hapur, Gautam Buddh Nagar, Muzaffarnagar, Meerut, Baghpat, Ghaziabad, Bulandshahr, Aligarh, Mathura and Agra.
The first phase will cover the Jat-dominated belt of western UP.
The first phase of polling will also decide the fate of nine ministers in the Yogi Adityanath government.