If referring to , there is an actress named Sahara (e.g., Sahara in Parineeta or other works), but that is not Bangladeshi. If the name refers to a minor or emerging artist, or a misspelling of "Shahara" or "Shohana," no public data on consistent romantic song narratives exists.
It is not possible to provide a proper academic paper on the specific topic of because there is no verified, widely recognized public figure in Bangladeshi media or cinema who performs exclusively under the single moniker "Sahara." Sahara Bangladeshi Actress Sex Song