Tap the Search feature (magnifying glass icon at the top right) in your Contacts screen.
NAME: Search by first or last name of the member (the default option). Free-form type in the name you are looking for.
Alternatively, click on the profile of anyone from the batch your classmate is from. You will see the year-
campus-batch details below his profile pic. Click on the the year-campus-batch relevant to your search
and you will see a list of all the batch members registered in Nine