The Proposal Dual Audio

To better assist you, could you please clarify what you mean by "text for: 'the proposal dual audio'"

Rip the DVD/Blu-Ray using software like MakeMKV. This creates an MKV file with the English audio track.
Extract the secondary audio track from a foreign-language DVD using similar software.
Use MKVToolNix (free software) to merge the two audio tracks into a single MKV file. You can label them "English" and "Hindi."
Ensure synchronization by playing the file and switching between tracks.

If you are planning a real-life proposal and searching for "dual audio," you might be looking for dual-system recording the proposal dual audio

The "couple" travels to Andrew's hometown of Sitka, Alaska, to meet his eccentric family. As they try to convince a suspicious immigration official that their love is real, they find themselves genuinely falling for each other despite their professional friction. Dual Audio & Language Support To better assist you, could you please clarify

3. Does an Official Hindi Dubbed Version Exist?

Yes, but not common.

Currently you are able to watch "The Proposal" streaming on Hulu, fuboTV, YouTube TV. Rip the DVD/Blu-Ray using software like MakeMKV

Farcical Nature: Like the film, the play uses comedy to critique social status and the superficial reasons people choose to wed.