If you want to login in the Union bank of India online banking retail then you go to the official site of Union bank of India. When you go to the official site of bank then you see the retail user login option in the left side at the top. When you click on the retail user login you will see the continue for login then you click on this then you will get the Retail Internet Banking Login page. In this page you can login by entering user id and password then click on login button you will be logged in India online banking retail.
When you go to the official website of Union bank of India you look like image same as given below:-