Kajol made her screen debut in the 1992 Indian Hindi-language action drama film ‘Bekhudi’ directed by Rahul Rawail. The following year, she starred as ‘Priya Chopra’ in the Abbas–Mustan-directed Indian romantic action thriller film ‘Baazigar.’ The film received 10 Filmfare Award nominations and performed well at the box office, grossing over ₹320 million on a budget of ₹40 million. She next starred in films such as ‘Udhaar Ki Zindagi’ (1994), ‘Yeh Dillagi’ (1994), ‘Karan Arjun’ (1995), ‘Taaqat’ (1995), ‘Hulchul’ (1995), and ‘Gundaraj’ (1995). Kajol became a recipient of the ‘Filmfare Award’ for her portrayal of ‘Simran Singh’ in the 1995 Indian Hindi-language musical romance film ‘Dilwale Dulhania Le Jayenge’ directed by Aditya Chopra. The film garnered praise from critics and managed to gross over ₹2 billion at the box office, becoming the highest-grossing Indian film of 1995. She continued to star in films such as ‘Bambai Ka Babu’ (1996), ‘Minsara Kanavu’ (1997), ‘Gupt’ (1997), ‘Ishq’ (1997), ‘Pyaar Kiya To Darna Kya’ (1998), and ‘Pyaar To Hona Hi Tha’ (1998). In 1998, she starred as ‘Anjali Sharma’ in the Karan Johar-directed Indian Hindi-language romantic comedy-drama film ‘Kuch Kuch Hota Hai.’ The film opened to a positive reception and grossed over ₹106.73 crores on a budget of ₹10 crores. Kajol also bagged a ‘Filmfare Award’ for her performance in the film.
She was next seen in films such as ‘Dil Kya Kare’ (1999), ‘Hum Aapke Dil Mein Rehte Hain’ (1999), ‘Raju Chacha’ (2000), ‘Kuch Khatti Kuch Meethi’ (2001), ‘Kabhi Khushi Kabhie Gham…’ (2001), and ‘Kal Ho Naa Ho’ (2003). Kajol received a ‘Filmfare Award’ and ‘Zee Cine Award’ for playing the role of ‘Zooni Ali Beg’ in the 2006 Indian Hindi-language romantic thriller film, ‘Fanaa’ directed by Kunal Kohli. The film was warmly received by critics and was a commercial success, grossing over ₹105.48 crores on a ₹30 crores budget. She next starred in films like ‘Om Shanti Om’ (2007), ‘U Me Aur Hum’ (2008), ‘Haal-e-dil’ (2008), and ‘Rab Ne Bana Di Jodi’ (2008). In 2009, she portrayed ‘Mandira Khan’ in the Hindi-language drama film ‘My Name Is Khan’ directed by Karan Johar. The film opened to a positive reception and won 3 ‘Filmfare Awards, including ‘Best Actress’ for Kajol. She continued to star in films like ‘Student of the Year’ (2012), ‘Dilwale’ (2015), ‘Velaiilla Pattadhari 2’ (2017), ‘Helicopter Eela’ (2018), and ‘Tanhaji’ (2020). Kajol was last seen in the 2021 Indian trilingual family drama film ‘Tribhanga’ directed by Renuka Shahane. The film was released on Netflix and received positive reviews from critics.