Watch the Official Teaser from Kannada movie ‘O2’ starring Ashika Ranganath, Praveen Tej, Raghav Nayak, Prakash Belawadi and Shreedhar. ‘O2’ movie is directed by Raghav Nayak and Prashanth Raj and produced by Ashwini Puneeth Rajkumar. To know more about ‘O2’ teaser watch the video. Check out the latest Kannada teasers, new movie teasers, trending Kannada movie teaser, and more at ETimes – Times of India Entertainment.