Hello sanjeet84,
Thanks for posting in the Apple Support Communities.
When you say you "de-linked" the phone from iCloud, do you mean that you erased the device and removed it from your Apple ID account? Depending on the iOS version you had installed, you may still have the option of tracking your device even if it's been erased.
"If you erase a device that had iOS 15, iPadOS 15, or later installed, you can use Find My to locate the device or play a sound on it. Otherwise, you won't be able to locate or play a sound on your device after you erase it. You might still be able to locate your Mac or Apple Watch if it's near a previously-used Wi-Fi network."
If you're still looking to recover the device, you can report the updated location information you were provided to your local law enforcement agency and see if they can help with recovery of the device.
You can find helpful information in the articles below:
Best regards.