To disable caller id in idea you should need to contact idea customer care.I think you have to pay about 300 rs.
On any GSM mobile phone, dial #31# before the number to suppress display of your caller ID information.
To hide your local mobile number while making calls, you can use the caller ID blocking feature provided by your mobile carrier. This is typically done by dialing a specific code before the number you wish to call (e.g., *67 in the U.S.). Additionally, you can check your phone settings to enable "Hide Number" or "Block Caller ID" options. Using a third-party app or service that masks your number is another alternative.
I dont think this is possible ......
yes star 67 (*67) before the number you are calling will block all numbers!
To hide your incoming call number, you can adjust the settings on your phone. For most smartphones, go to the dialer or phone settings, look for "Caller ID" or "Show My Caller ID," and select the option to hide your number. Alternatively, you can enter a specific code before dialing a number (like *67 in the U.S.) to block your caller ID for that call. Remember that these settings may vary depending on your mobile carrier and device.
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it is not possible in pakistan
He has something to hide.
You can hide the caller ID display a few ways when you need a little privacy. One method is to dial *67 before the number you are calling. Another way is to make arrangements with your service provider.
hello
Some phone companies require you to pay or activate the CallerID function, or the caller might hide their number.
In nokia mobiles renaming file or folder name with an extension (z.otb) we can hide