She attended Sri Jayachamarajendra College of Engineering, Mysore. Soon she quit engineering to pursue her modeling career. She first made an appearance in the Fair & Lovely Fairness Cream commercial. This ad led her to film assignments. She made her cinematic debut with the Kannada film Abhimani in 2009. Though the movie failed at the box office, she got noticed. The same year she also made her Tamil film debut with the film Sweet heart. She then starred in hit Kannada movies like Pancharangi, Krishnan Marriage Story, and Anna Bond. Through these films, she became an established actress of the Kannada film industry.
Apart from Tamil and Kannada, she has also acted in Hindi films. She made her Bollywood debut with a minor role in the much-acclaimed movie Oh My God!! in 2012. After which she was seen playing the lead role in the film Ajab Gazab Love. Her upcoming film is Adhoora, which is all set to release in 2017.
Nidhi has shown that she has talent in abundance in whatever little she has done thus far.