Initially famous for her roles as Gauri Mittal and Nandini Virani in the respective soap operas Kutumb and Kyunki Saas Bhi Kabhi Bahu Thi, Tejwani went on to play Falguni Harshad Parekh in the series Meri Aashiqui Tum Se Hi. She began her entertainment career as a model, appearing in her late teens in several commercials and competing in the Femina Miss India beauty pageant.