Nirmish Thaker has been drawing two cartoons every week specific to the petroleum industry that gets published in the in-house e-publication ONGC Reports, the Editor of which is Debasish Mukherjee. Under the title ‘Ganpat Surti Says...’, the first such cartoon was published on March 9, 2016. Thaker calls them Petro-Cartoons! Thaker has been serving as a Chief Engineer in ONGC since 1984.