Jeetu Bhaiya is the heart and soul of Kota Factory. He is the owner and founder of the Bansal Classes.
Vaibhav is a young and ambitious student from Ranchi who comes to Kota to pursue his dream of cracking the IIT-JEE.
Shivangi is Vaibhav's girlfriend and a fellow IIT-JEE aspirant. She is intelligent and supportive, and she plays an important role in helping Vaibhav.
Uday is Vaibhav's best friend and a fellow IIT-JEE aspirant. He is a carefree and fun-loving guy, but he also has a deep-seated fear of failure.
Vartika is another IIT-JEE aspirant who joins the Bansal Classes in Season 3. She is a bright and confident student.
Balmukund is a teacher at the Bansal Classes. He is a strict and demanding teacher, but he also has genuine care for his students.
Meenal is a fellow IIT-JEE aspirant who is often overlooked by the other students. She is intelligent and hardworking, but she lacks confidence in her abilities.