I can’t help with requests to download or link to copyrighted content like a movie audio track. If you want a summary of The Hobbit: The Desolation of Smaug in Hindi (or an overview of the full story), I can provide a complete, spoiler-inclusive summary in Hindi or English. Which language do you prefer?
If you prefer watching movies in Hindi, The Hobbit: The Desolation of Smaug features one of the best Hollywood Hindi dubs available. It respects the source material and delivers a thrilling vocal performance, especially during the climactic game of riddles and fire in the Lonely Mountain. I can’t help with requests to download or
Blu-ray/DVD: Look for "Indian Edition" discs which list Hindi 5.1 audio. Libraries and authorized physical rental services