It would be difficult to provide you the cutoff of 2018, Officially the data is available for 2016 which cutoff was 140.92 as General category, OBC- 134.92, SC- 131.58, ST- 103.83 and you can also prefer the list of selected candidates 2019 with the given below link.

http://www.upenergy.in/site/writereaddata/siteContent/201902052046335860358_VSA_05022019.pdf

You can also prefer the below given link for the further information.

http://www.upenergy.in/uppcl/en/page/vacancy-results

Good Luck!