The story follows Sunil (Rajesh Khanna) and Sonia (Sharmila Tagore), a young couple whose lives are shattered when Sunil is sentenced to life imprisonment for killing Dheeraj (Prem Chopra), his boss's son, in an attempt to protect Sonia from assault.

[Sunil & Sonia Marry] ➔ [Tragic Flight / Fight] ➔ [Sunil Presumed Dead] │ ┌─────────────────────────────────────────────────────────┴────────────────────────────────────────────────────────┐ ▼ ▼ [Sonia raises son alone; becomes teacher] [Sunil assumes identity "Sudhir"; marries Chandni] │ │ └─────────────────────────────────────────────────► [THE TRIO REUNITES] ◄──────────────────────────────────────────┘ │ ▼ [Courtroom Drama & Resolution]

Years later, fate brings the two worlds together. Sonia loses her teaching job and is offered refuge in the home of a kind woman—who happens to be Chandni. When Sunil (now Sudhir) returns home, he is shocked to find his first wife living under his roof.

The plot kicks off with the blissful marriage of Sunil (Rajesh Khanna) and Sonia (Sharmila Tagore). During their honeymoon, bad weather forces them to stay at a bungalow belonging to Sunil’s boss. The boss’s villainous son, Dheeraj (Prem Chopra), attempts to assault Sonia. In a frantic moment of self-defense to protect his wife's honor, Sunil kills Dheeraj.

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Years later, a struggling Sonia discovers that Sunil is alive and living under the assumed identity of "Sudhir". He has built a life as a wealthy, respected mayor and has married Chandni (Raakhee). Sunil only married Chandni to give her illegitimate child a father's name in exchange for her help in constructing his new identity. When the past collides with the present, Sunil must face a relentless prosecutor and the social stigma of bigamy. Chart-Topping Soundtrack & Cultural Impact

The phrase "Index of Daag 1973 verified" typically refers to a search for a direct download directory (an "Index of" page) for the 1973 Bollywood blockbuster film Daag: A Poem of Love

Web servers often display a raw list of files if a default homepage (like index.html) is missing.

YRF has a long-standing partnership with Prime Video. Daag is frequently available in various regions as part of the standard Prime streaming library, complete with English subtitles and remastered digital quality.

: A quintessential romantic anthem that became synonymous with Rajesh Khanna's charm.

After analyzing the digital landscape, here is the hard truth:

It looks like you're searching for a copy or reference to the 1973 Urdu film "Daag" (starring Dilip Kumar, Madhubala, and Nirupa Roy) — likely its index or entry in a paper, catalog, or archive.