Kaun Sachcha Kaun Jhootha is a suspense thriller that attempts to capitalize on the star power of Rishi Kapoor and Sridevi. The film's core strength lies in its premise, which sets up a classic 'whodunit' mystery. However, the execution feels dated even for the late 90s, with a screenplay that often meanders into unnecessary subplots and melodrama. The first half focuses on the investigation and building the mystery, while the second half attempts to resolve the complex web of lies, though the pacing becomes quite sluggish.

Sridevi delivers a layered performance, effectively portraying a character with ambiguous motives, while Rishi Kapoor provides a steady presence as the protagonist. Despite their chemistry, the film is hampered by a weak musical score by Rajesh Roshan, which fails to provide any memorable tracks or heighten the tension of the thriller. The background score is functional but lacks the atmospheric intensity required to keep the audience on the edge of their seats.

Technically, the film is average, with standard cinematography and editing that doesn't particularly stand out. The direction by Partho Ghosh is straightforward but lacks the stylistic flair seen in his previous works like '100 Days'. Ultimately, the film struggles to maintain its suspense throughout its runtime, resulting in a thriller that is more of a slow-burn drama than a gripping mystery.

Rishi Kapoor: Dependable and professional as the police officer Karan.

Sridevi: The standout performer, bringing depth and mystery to the character of Sapna.

Suresh Oberoi: Provides decent support in a pivotal role.

Gulshan Grover: Effective in his typical antagonistic style.

Mohnish Behl: Adequate in his supporting role.