Well the official site of the UPPSC is the uppsc.up.nic.in

The home page will look like the below image



At left side you will see the following options

Notifications/advts.
All Notifications/Advertisements
Online form submission
1.Candidate Registration
2.Fee Deposition/Reconciliation
3.Submit Application Form
application form status
Update your transaction ID by Double Verification mode
View Application Status
List of Applications Having Photo related Objections
Print Duplicate Registration Slip
Print Detailed Application Form

At the center you will see all the latest notifications UPSSC