Ronit Bose Roy is the eldest son of businessman Brothindranath and his wife Dolly Bose Roy. Ronit spent his childhood in Ahmedabad (Amdavad), Gujarat. Although Ronit never acted in school or college, Ronit was attracted to lifestyle and glamour associated with movie stars. During college years, based on Ronit's looks, people would often tell Ronit that he should consider becoming an actor. Comments like these fuelled his desire to chase that dream.
By nature, Ronit Roy is a very humble, sincere, family oriented, cultured, and religious. Ronit is a keen health and fitness enthusiast, and therefore he devotes a lot of his spare time to exercising and working out. He has also undergone though training for various ancient forms of martial arts. On 25th December 2003, Ronit married actress and model Neelam Singh. Ronit is the proud father of three – two daughters and one son.
After 3 successful years in business, Ronit received a call from the Balaji Telefilms office to offer him a part in their new television serial Kammal. Before Kammal got started, Balaji Telefilms also offered Ronit an 8 week cameo of of Rishabh Bajaj in Kasautii Zindagii Kay. The audience reaction to Mr Bajaj was so positive, that Balaji Telefilms decided to make Ronit a permanent part of Kasautii Zindagii Kay. Within a year Ronit was offered yet another prize role – the role of Mihir Virani in Balaji Telefilms' flagship serial Kyunki Saas Bhi Kabhi Bahu Thi. Then in Kasamh Se, Ronit Roy assumed the role of the eccentric, yet ultra cool "Andekha, anjaana, anokha, adbhut" Aparajit Deb. In addition to the three award winning roles mentioned above, Ronit has also had successful roles in serials such as Kehna Hai Kuch Mujh Ko, Kavyanjali, Sarrkkar – risshton ki ankahi kahani, and Kayamath.
In September 2007, Ronit Roy took the challenge of competing in the second season of Sony Television's popular dance show Jhalak Dikhla Jaa – Dancing with the Stars. Ronit was paired with Nicole Alvaris. Ronit and Nicole were eliminated in the 9th round of the competition. In March 2008, Ronit took on the role of team leader for one of the 9 teams on 9X Television's new reality show Yeh Hai Jalwa. Ronit Roy and his team, the Bindaas Bosses, won as the 2nd runner up.
Ronit has played the prestigious role of the legendary warrior Bhishma Pitamah in Balaji Telefilms' production Kahaani Humaaray Mahabharat Ki. Ronit judged a reality show, "Aajaa Mahi Vay" along with Shweta Tiwari and Apara Mehta. Apara Mehta was then replaced by Saroj Khan. Ronit is now doing yet another serial with Balaji Telefilms titled, "Bandini", as Dharamraj Mahiyavanshi.