Based on the provided information, the film 'Rekha' does not contain identifiable LGBTQ+ characters or themes. Therefore, an evaluation of its portrayal of queer identity is not applicable.

The film 'Rekha' does not feature any identifiable transsexual characters or themes. Its narrative focuses on other aspects, leading to no portrayal of transgender identity.

The movie does not contain any action or adventure elements.

There is no available information indicating that "Rekha" (1943) is an adaptation of source material with pre-established characters whose genders were subsequently altered for the film. The characters appear to be original to the production.

The film "Rekha" (1943) is presented without any prior source material, historical figures, or earlier adaptations that would establish a character's race. Therefore, there is no baseline to determine if any character's race was changed from a previously established depiction.