He was the 21st General Officer Commanding-in-Chief (GOC-in-C) Army Training Command.

He assumed office on 1 November 2018 from Lt Gen Manoj Mukund Naravane.

[2][4] He was a sword of honour winner at the Indian Military Academy.

He has also served as a military observer on the UN mission in Angola and as a Defence Attache to Bangladesh.

[6][7][4][8][9] Thimayya retired from the Army on 29 April 2020 after 39 years of service.