[1][12] Dipsita Dhar started her organisational activities through Kishore Bahini, a children's group in West Bengal.

[13] She joined Jawaharlal Nehru University in 2013 and became the Councillor for School of Social Sciences, the first victory in JNUSU for SFI after its disruption in 2012.

[17] Dipsita was also part of the Student Politician Delegation to United Kingdom along with 8 others from India, organised by the British High Commission, New Delhi in 2015.

[10] In 2016, as the President, Student Federation of India, Jawaharlal Nehru University Unit, she told Al Jazeera, "The patriarchal Indian culture is to be blamed for the rape and abuse cases.

[30][31][32] In 2017, as a member of Central Executive Committee of SFI, she said, "Sanitary pads should be considered as a health necessity and ideally to be provided to every underprivileged girl for free or in nominal cost, as a large sections of them, due to social taboo and economic reasons cannot not attain a satisfactory menstrual hygiene.

[37] She has publicly expressed support for the LGBTQIA community as the joint secretary of SFI and a candidate in the 2021 Bengal Assembly Elections during a meeting organized by the group Left for Rainbow Rights.

[39][40][41][42] She has also led the SFI delegation to the Union Ministry for addressing the under representation of marginalised students in Indian Institutes of Technology's (IIT)[43] and frequently advocates against caste oppression in India.

[44] She played a crucial role in Nabanna agitation in West Bengal that demanded employment and education for youth and the protests after the murder of CPI(M) activist Maidul Islam Midda.

[47][48][49] Dipsita Dhar contested against Dr. Rana Chatterjee from All India Trinamool Congress and Baishali Dalmiya from Bharatiya Janata Party at Bally (Vidhan Sabha Constituency), West Bengal.

[citation needed] She is the granddaughter of Padma Nidhi Dhar, the three time Member of Legislative Assembly (MLA) in Domjur, Howrah district.