The 700mb file size for 720p suggests it's a compressed version. BRrips usually have higher quality, but if it's downsampled and compressed, the file size would be smaller. So it's a balance between quality and file size.

Next, explain the file format: BRrip is a bit of a contradiction because BRrip is a rip from a Blu-ray disc, but the resolution here is 720p. Typically, Blu-rays are 1080p or higher. Maybe it's a Blu-ray rip downsampled to 720p? Or perhaps the term BRrip is being used differently here. Also, dual audio means the movie has two audio tracks, Hindi and English in this case. Dual audio is common in Indian media for accessibility.

Then, the write-up should explain what BRrip is, dual audio, and the significance of the file size. Also, maybe mention copyright issues since sharing such files is illegal in many countries. The user might be looking for a description for a torrent site or something, but I need to present it neutrally while also mentioning legal concerns.