Downloading copyrighted material without permission is illegal in most jurisdictions (USA, EU, India under the Copyright Act, 1957). ISPs can send warnings, and in severe cases, fines apply.
This means the video file contains two separate audio tracks. Typically, for major Hollywood releases, this includes the original English audio and a dubbed version (such as Hindi, Spanish, or French). Viewers can switch between languages using their media player settings. Constantine Dual Audio 1080p Download REPACK
Given the technical nature of the keyword, this version of Constantine is not found on mainstream legal streaming services. A user searching for this is looking on specific types of websites. While I cannot and will not endorse their use, it is useful to know the landscape: India under the Copyright Act