Bidita is from Santragachhi, Howrah, West Bengal. She was born into a Bengali Hindu family of Indian state of West Bengal. She has a brother who teaches at Delhi School of Economics.

She attended Kendriya Vidyala, Santragachi and completed her pre-university studies from Kendriya Vidyalaya Fort William in Science. Bidita graduated in Economics from Jadavpur University, Kolkata. She is a trained classical singer and loves painting.

While in college, Bidita pursued a career in modelling. She was spotted by Jeena Mitra Banik and ace make-up artist Late Prabeer Kumar Dey. She came into limelight in Kolkata after working for designers like Sabyasachi Mukherjee and Kiran Uttam Ghosh. After graduation she shifted her base to Mumbai. She has worked for Lakme fashion week, Lakme Elle-18, Vaseline, Nokia, Motorola, Colgate, Reliance etc. Recently she has been face of brands like Fair and Lovely (make-up man ki beti), 7UP, Samsung Corby TV, Wild Stone deodorant, Kwality Walls Cornetto, Manubhai Jewellers, Jade, Indian Terrain, Bombay Dyeing, Eye-tex Dazzler etc.