[6] On 8 August 2017 the then state member for Blacktown John Robertson announced he would be resigning from the NSW Legislative Assembly,[7] causing a by-election to be held later that year on 14 October.

In his inaugural speech to the parliament Bali outlined his goals for health, education, and infrastructure for his electorate, which he claimed had previously been "excluded".

[3] Bali was subsequently returned to the Legislative Assembly in the 2019 New South Wales State general election with a two-party-preferred vote of 67.74%, and a swing of +4.55 points.

[8] Bali re-contested Blacktown at the 2023 New South Wales state election and was re-elected with 69.1% of the two-party-preferred vote, a swing of 2.5 points.

[11] Bali also serves as the chair of the Better Foundation [1], a charity created in 2016 which operates in the Blacktown and Mount Druitt area specifically to raise funds for Blacktown Hospital and Mount Druitt Hospital for equipment, training, and other resources that the state government's budget does not fund.