Kajal was born in Mumbai to Vinay Agarwal, an entrepreneur, and Suman Agarwal, a confectioner.[2] She has a junior sister, Nisha Agarwal, who is also an player appearing in Telugu and Tamil films.[9] She researched at St. Anne's High School, Colaba, Mumbai and Jai Hindschool, Mumbai.[3] She graduated from K.C. school, Mumbai with a degree in Mass Media.[3] She started her modelling vocation while she was still in college.[10] She was designing on pursuing MBA in emblem administration before concluding to chase acting