As for the "free" part of your query, I'm assuming you're looking for a way to watch the movie without spending a dime. While I couldn't find any legitimate sources offering the movie for free, you can try searching for:
Rights and distribution details are occasionally listed on Ultra India . Har Raat Naya Saudagar _ Full Movie - video Dailymotion Har Raat Naya Saudagar _ Full Movie Dailymotion·Pakistani Talk Shows Har Raat Naya Saudagar (2005) - Full cast & crew - IMDb hindi movie har raat naya saudagar free
It is highly likely that you are referring to the classic 1973 Bollywood film (starring Amitabh Bachchan and Nutan) or perhaps the 1991 film of the same name (starring Dilip Kumar and Raaj Kumar). However, based on the phrasing, you might be conflating the title with another film or misremembering a specific lyric or dialogue. As for the "free" part of your query,
Moti falls in love with (Padma Khanna), a fisherwoman. However, Moti is poor and lacks the capital to marry her. He approaches Mahzubeen (Nutan), an older, experienced woman known for making high-quality gur. He proposes a business partnership: he will marry her to secure her "recipe" and labor, promising to make her life better. However, based on the phrasing, you might be
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