Given these details, it seems you're looking for or have found a Bengali movie titled "Khawto" from 2016, encoded in 720p resolution with relatively good video and audio quality (thanks to x264 and AAC), intended for web distribution.
The film is visually striking, using the lush, moody landscapes of North Bengal to mirror the internal turmoil of its characters. khawto 2016 bengali 720p webhd x264 aac h free