Is there a way to disable notifications bell? I have gone to setup -> user interface -> clicked user Interface and disabled Enable Salesforce Notification Banner checkbox. But still i get notifications.
Enable Salesforce Notification Banner is a Global banner (rectangle) that shows in all pages that usually displays Salesforce communications.
What you are looking for is the App Notifications: https://developer.salesforce.com/docs/atlas.en-us.salesforce1appadmin.meta/salesforce1appadmin/s1_admin_guide_notifications.htm
Setup --> Apps --> Mobile Apps --> Salesforce --> Salesforce Notifications