The star of the show is the possessed girl, Janet. In the Tamil version, the voice modulation during the possession scenes is aggressive. In many Tamil horror dubs, possessed characters just scream. Here, the dubbing director understood the assignment. The voice switches from a scared child to a deep, guttural old man (Bill Wilkins) effectively. When the spirit speaks Tamil in a British working-class accent, it creates a bizarre, uncanny valley effect that is genuinely terrifying.
That being said, here's some general information: the conjuring 2 tamil dubbed tamilyogi
The film introduced the terrifying "Demon Nun" known as Valak, which later spawned its own spin-off franchise. Tamil Dubbing & Reception Cultural Impact: The star of the show is the possessed girl, Janet