Voting for the Kairana parliamentary seat and Noorpur assembly constituency began amid tight security at 7 a.m. on Monday, officials said. It will continue till 6 p.m.
In all there are 160,962,8 voters in Kairana of which 873,120 men, 736,431 women and 77 of the third gender.
In Noorpur there are 306,226 voters here of which are men, 141,924 women and 10 this gender voters.
A total of 2,651 EVM control units, 2,651 ballot units and 2,596 VVPAT's are being used in the polling process, an official told IANS.
Uttar Pradesh Chief Minister Yogi Adityanath campaigned in the area to ensure that BJP does not see a repeat of Gorakhpur and Phulpur, where his party lost to Samwajwadi Party in Lok Sabha by-elections, IANS had earlier reported.