Vandana Tiwari, better known by her screen name, Gehna Vashist is an Indian TV and film actress, model and TV presenter who works in Hindi, and South Indian films, especially in the Tamil and Telugu language cinema. Having started her career as a model, Gehna rose to fame by winning the Miss Asia Bikini through an online contest. After modeling for several renowned brands, she later ventured into acting and made her debut on the silver screen with a guest role in the 2007 Telugu movie, Operation Duryodhana.

Although Gehna did not get much recognition or fame with her maiden film, she, however, got plenty of offers. She played one of the important roles in the 2012 Bollywood film, Daal Mein Kuch Kaala Hai, which was directed by Aanand Balraj. Her other notable film credits include Luckhnowi Ishq (2015), and Lalijo Lalijo (2018), a Telugu horror-thriller film directed by Mohan Srivatsasa.