[3] He contested the parliamentary election in 2019 polls and 2021 by-polls representing CPI(M) in Malappuram, Kerala against IUML and lost both times.

[6][2][7] During his term as the National President of SFI the organisation has witnessed remarkable growth in southern and northern states of India.

[8][9] He played a key role in organising rallies against Narendra Modi on 15 March 2016 at New Delhi demanding improved budget allocation for education, health and employment generation.

[11][12] Sanu gave a call for boycotting Hewlett Packard (HP) protesting against the Israel's violation of human rights in Palestine.

[17] The jatha was directed against the anti-student policies of Narendra Modi and raised the slogan of "Scientific and Quality Education Without Discrimination".

[18] On 18 February 2019, under the leadership of Sanu, students' federation of India and several left organisations marched to parliament demanding the 10 percentage of central government budget allocation for education and the implementation of Bhagat Singh National Employment Guarantee scheme.

[19][20] He openly declared support for Women in Cinema Collective and criticised Association of Malayalam Movie Artistes (AMMA) for their decision to take back actor Dileep, who was accused in abduction and sexual harassment of an actress in Kerala.

Ever since the draft of NEP got published, India has seen nationwide protest action against the educational policies of Narendra Modi Government.

[32] He was also in the fore front demanding proper investigation and punishment of stupidities for the institutional murder of Fathima Lathif, a student of IIT Madras.

[38][39][40] He did a 13 km long protest rally from Panangangara to Malappuram against Amit Shah's statement that CAA will be implemented in Kerala after 2021 polls.

[45][46] During the COVID-19 pandemic, In first of an attempt in India, he handed over WISK (Walk-in Sample Kiosk) developed by SFI activists to Government hospital, Tirur.

[49] He strongly criticized the Draft Lakshadweep Panchayat Regulation, 2021 and said that "this bizarre formulation should give a hint about the heights of Praful Patel's mal-administration.

[54][55] He criticized Kerala High Court Judge Justice Devan Ramachandran for working in submission to the Modi led union government.

[67][68] He criticised the IUML leader P.K Kunhalikutty for the poor parliamentary performance and the notable absence during the Triple Talaq bill voting and the Vice President election.