He began his career as a model before transitioning to television. He made his acting debut with Sony Entertainment Television's
Parvarrish – Kuchh Khattee Kuchh Meethi (2011) and gained recognition for his role as Rahul in
Dil De Ke Dekho (Sab TV). He has appeared in shows such as
Ek Nanad Ki Khushiyon Ki Chabhi Meri Bhabhi,
Bitti Business Wali,
Silsila Pyaar Ka and
Zindagi Ke Crossroads. In 2011, he appeared in the Pepsi TVC ‘Le Lunga.’ This was followed in 2013 by another popular Pepsi IPL TVC, where he shared screen space with
Ranbir Kapoor, portraying a general character that highlighted his youthful energy during the Indian Premier League season. And in 2015, he appeared in another ad of Pepsi, In 2016, he landed a recurring role of Spunky Narula in the web series "Life Lafde Aur Bandiyan" which aired on Bindas. In 2018, He walked as a showstopper for Anu Ranjan's "BeWithBeti" fashion show in Pune, supporting the cause. A year later, he won his first fitness award, being named Inspiring Fitness Celebrity at the Inspire India Summit. He made his film debut with a supporting role in
Karan Johar's teen drama
Student of the Year 2 (2019), playing Abhishek Sharma (A captain of Pishorilal College team), and also appeared in the web series
Boys With Toys, co-starring Vivaan Shah and Zoya Afroz, was released on an OTT platform. This was followed by the films
Kabaad: The Coin,
Chandigarh Kare Aashiqui and web series
Your Honor in 2021. In the same year in December, He appeared on the magazine cover of Entitle Magazine. In 2022, He starred in the movie
Babli Bouncer, did five ads campaign for Muscleblaze Vite Daily multivitamin, Dr Morepan Health Muscle Food 100% Whey Protein, Muscle Blaze Fit and BGreen plant protein, also menswear ad for Marks and Spencer (M&S) India. A year later, He did an ads campaign for Gillete india. In 2024, He appeared in a music video "Dooriyan" opposite actress Zaara Yesmin, landed a web series "Nama Cool" as UP Character Chakku Pandey, and starred as Ayaan Grover in the television drama "Jubilee Talkies – Shohrat Shiddat Mohabbat". In December 2024, he assisted his cricket team, Gujarat Lions, in winning the trophy at the All Stars Tennis Ball Cricket. In early 2025, He walked as a showstopper for designer Alok Agarwal Jaipur Couture Show. In August 2025, he joined
Colors TV's reality show
Bigg Boss season 19 as a contestant, but was eliminated after a single fellow contestant voted him out rather than through audience voting, finishing in 11th place. Despite his early exit, his gameplay and instincts in the house were praised by media commentators, and he became one of the most talked-about contestants. During the Family Week episodes, Bajaj received significant support both inside and outside the house. Media reports noted that contestants’ family members expressed admiration for his gameplay and described him as a strong contender who should have remained in the competition longer. According to
Filmibeat, he created history by becoming the first contestant ever to trend in Top-5 worldwide on
X better known as Twitter following his eviction from the show. Following his eviction, in December 2025, he appeared in his first advertisement for the brand Ghar Soaps. During the same month, he was listed among the Top 30 Men of Television 2025, securing the 8th position, and also appeared in his second commercial for
Oppo India, promoting the OPPO Find X9 Series. In January 2026, he collaborated with Pranit More for a rap song promoting
Beast Games season 2. In February 2026, He signed with TGB Troop, which manages his brand collaborations and professional appearances. In March, He was recognized as a Fit India Champion at the Fit India Carnival 2026 in Delhi for promoting healthy lifestyles. In the same month, he attended a FEAR Project event at Inorbit Mall Vashi to support endurance athlete Kanthi Dutt and promote the
Fit India Movement, a national initiative encouraging physical fitness. ==Personal life==