If you still have the phone you used in 2021, go to your File Manager: Internal Storage > Android > media > com.whatsapp > WhatsApp > Media > WhatsApp Audio . Search for "20210612".
If you remember the topic of the audio (e.g., a specific politician speaking, a movie comedy scene, or a news event from June 2021), searching for those keywords on YouTube or Telegram is much safer than searching for the technical filename. If you still have the phone you used
The phrase (with the Tamil text "பதிவிறக்கவும்") refers to a specific WhatsApp audio file that likely went viral or was widely shared in Tamil-speaking circles around June 12, 2021 . Context and Analysis a specific politician speaking
20210612 : Indicates the date it was created or saved to the device (June 12, 2021). WA0138 : A unique sequence number assigned by the app. a movie comedy scene