State Bank Of India [SBI] — I lost my old registered mobile number

Address: Bijapur, Karnataka, 586101

I lost my old phone number and didnt update that number bt i need to activate net banking and mobile banking i want to update new number can i do it in atm? Or i have to go to my home branch only? And how much time it will take to get number changed in atm? Because i m too far from my home branch please help me fast i need to re-register my number asap.