Hi @Savan_Vaghasiya,
Welcome to the Niyo Community! 
We understand your concern that you want to update your mobile number. Please email us at global@goniyo.com with the below mentioned documents,
1. Original PAN (self-attested)
2. Driving licence
3. If POST PAID: A copy of your monthly bill will be required for verification. (of your new mobile number)
If PRE-PAID: A copy of the payment invoice/receipt will be required for verification.
Once mail is sent, please share us the ticket ID here so that we can help you further.
