A 40 kbps track is considered very low fidelity (suitable only for small speakers or mobile phones). Original Tamil dubbing from TV broadcasts would have been 128–192 kbps.
According to some reports, the Tamil version featured prominent voice talent, with claims that actors like Vijay Sethupathi and Nayanthara provided voice-overs for the main characters in certain digital versions. Where to Watch Rab Ne Bana Di Jodi Tamil Dubbed Audio Track... 40
Songs like "Tujh Mein Rab Dikhta Hai" and "Haule Haule" are timeless classics. A 40 kbps track is considered very low
Prime Video frequently holds the streaming rights for Yash Raj Films (YRF) productions. They often include multiple audio options, including Tamil, Telugu, and Hindi, with togglable subtitles. Rab Ne Bana Di Jodi Tamil Dubbed Audio Track... 40
Shah Rukh Khan’s dual performance as the "geeky-gawky" Surinder Sahni and the flamboyant Raj is widely praised.