Prajakta Koli, also known as MostlySane, is a popular Indian YouTuber, social media influencer, and comedian. She was born on January 8, 1992 in Mumbai, India. She is known for creating relatable and humorous content on her YouTube channel and Instagram.

She completed her schooling from Vasant Vihar High School in Thane  and later graduated from V.G.Vaze College of Arts, Science and Commerce in Mulund in Mass Media. As a student she was very active in debates and public speaking.

Prajakta Koli began her career in media as an intern at Fever 104 FM radio station in Mumbai. While working as an intern, Koli met future One Digital Entertainment vice-president Sudeep Lahiri, who encouraged her to launch a comedy YouTube channel.

Prajakta Koli began her career as a content creator in 2015, when she started posting videos on YouTube under the name MostlySane. Her videos primarily feature comedic skits and vlogs, and she quickly gained a large following for her relatable and funny content. As her channel grew, she began to branch out into other forms of social media, including Instagram. Before launching her channel in 2015, She started her career in the media as a social media intern at fever 104 but she quit her job because she was motivated to launch her own channel.

In addition to her online content, Prajakta Koli has also had success as a live performer, having performed stand-up comedy at various venues in India. She also made her acting debut in popular Netflix OTT series Mismatched opposite Rohit Saraf and also made her bollywood debut with the movie Jug Jug Jeeyo opposite Varun Dhawan, Anil Kapoor, Kiara Advani and Neetu Singh.

Due to her immense popularity, she has also collaborated with other popular Bollywood actors like Kareena Kapoor, Vicky Kaushal, Kajol etc. She has won many prestigious awards like and accolades like Forbes 30 under 30 list and in Outlook Business Magazine’s list of women of worth and Entrepreneur India’s list of 35 under 35 along with winning Cosmopolitan’s YouTuber of the Year award in 2019. She recently made a debut in a bollywood film named Jugjugg jeyo that featured Neetu kapoor , Anil kapoor, Varun Dhawan and Kiara Advani.