You can find more information about the film on its official IMDb page or via legitimate streaming platforms like Amazon Prime Video (availability may vary by region).
I think you're referring to the iconic "robot" costume worn by Aishwarya Rai Bachchan in the 2010 Tamil sci-fi film "Enthiran: The Robot". You can find more information about the film
In the 2010 blockbuster Endhiran (The Robot) , Aishwarya Rai Bachchan played Sana, bringing emotional depth to the high-octane sci-fi film through a variety of fashion-forward, curated looks. Her performance, which included iconic song sequences filmed globally, saw her established as the highest-paid Indian actress of that era. For a look at her different styles in the film, visit NDTV . Her performance, which included iconic song sequences filmed
: Famous designer Manish Malhotra worked extensively on her ensembles, which included over 37 long frocks and meticulously styled outfits intended to match the film's futuristic aesthetic. Artistic Direction Artistic Direction