As an amateur, he was part of the Indian team that won the silver medal at the 2010 Asian Games.

[7] In 2006, Bajaj started participating in amateur tournaments organized by the Indian Golf Union.

[15][16] Other team members included Rashid Khan, Abhinav Lohan, and Abhijit Singh Chadha.

[17][18] The team at Dhaka included Chikkarangappa, and Ashbeer Singh Saini who were joined by Khan and Bajaj.

[2] Two years later, Bajaj lost a playoff at the same event to Akshay Sharma to finish second.

[25][26] In 2016, he led the field after the first round of the Asian Tour's Qualifying School Final Stage.