Share your experience!
I recently lost my Xperia ultra. Is it possible to track down the current location of the phone?
Hi @Grishma, sorry to hear about what has happened. 
If the device is still powered on and have an active mobile data connection you can try and locate it using the MyXperia service (this needs to have been activated beforehand in your device) or the Google service called Find My Device.
Do note that both services require that you have a Google account in the device.
Let me know if that helps! 