[4][5][6][7] After passing the CA Intermediate examinations, he decided to dropout and enroll himself in a Master of Business Administration in finance to allow him to pursue cricket further.

[8] Iyer finished as Madhya Pradesh's top scorer in the 2021-22 Syed Mushtaq Ali Trophy with 155 runs at an average of 51.66.

He continued his form in the 2021-22 Vijay Hazare Trophy scoring 379 runs at an average of 63.16 with a strike rate of over 133, batting in the lower middle order.

In February 2021, Iyer was bought by the Kolkata Knight Riders in the IPL auction ahead of the 2021 Indian Premier League.

On 24 November 2024, Iyer was bought back by Kolkata Knight Riders for Rs.23.75 crore, becoming one of the most expensive players in the history of the IPL.