What sets the version apart is the volume mixing . The alien reverberations—deep, rumbling croaks—are left in the original alien language (not dubbed), while only human dialogues are translated. This preserves the eerie authenticity of first contact.
Cheaper dubs rely on literal translations that sound robotic. "Extra quality" dubs employ scriptwriters who rephrase sentences so they flow naturally in spoken Tamil while maintaining the precise scientific or philosophical meaning. arrival 2016 tamil dubbed extra quality