Hello student steps to change mobile number in Careers360 application is as mentioned below-

• Open Careers360 application
• Tap on the menu bar (3 consecutive line in upper left corner)
• Tap on my Dashboard
• Tap on 3 dots in upper right corner
• Tap on My profile
• Tap on Edit option (upper right corner above your name)
• Edit your mobile number
• Save

Follow the steps mentioned above and change your mobile number easily within a minute.

Feel free to comment if you've any doubt

Good luck