While you are looking for a DVDRip version, the film is available through official streaming platforms with English subtitles for a high-quality experience:
The demon's target is Maheshwari ("Mahi," played by Anushka Shetty), a devotee born during a rare celestial alignment. Andhakasura impersonates her betrothed, Rahul, to get close to her for the ritual. Meanwhile, Lord Shiva descends to Earth in the human form of Sambayya to guide Malli, though Malli is unaware of his true identity. damarukam 2012 telugu movie dvdrip english