As you have asked about the United bank of India clerical recruitment notification, I want to tell you that there is no clerical recruitment notification has been released by United Bank of India.
However, you can check for recruitment notification from its website regularly to know about it.
To check it, you can follow steps given below

Go to United Bank of India website, the page open look like




Click on Recruitment at the top of screen, the page open look like



Here you will get the information about the clerical recruitment notification when available.
Here I found following:
Recruitment

Appointment of Company Secretary and Security Officers

Detailed Advertisement
Fee Deposit Challan
Apply Online for the post of Company Secretary
Apply Online for the post of Security Officer