[12] Mehta resigned from the National Knowledge Commission in 2006 in protest against the UPA government's Higher Education Policies.

[13] Mehta also resigned from the Executive Committee of the prestigious Nehru Memorial Museum & Library in 2016 to protest the appointment of a politically-connected bureaucrat as director.

Mr Mehta also believes that reading news from authentic sources is the need of the hour especially when the youth of the nation is using websites such as Wikipedia to gain information and form an opinion, especially when misinformation and disinformation is on the rise.

[15] He resigned from Ashoka University as a professor in March 2021, when trustees Pramath Raj Sinha and Ashish Dhawan are said to have told Mehta that "his intellectual interventions were something they could no longer protect.".

The students also demanded the resignation of Vice-Chancellor Malabika Sarkar unless the administration offered Mehta his job back.