Sanjibhai was elected to Lok Sabha from Dadra and Nagar Haveli in 1967 as Indian National Congress candidate and joined Morarji Desai's NCO faction when the party split in 1969.

[citation needed] In July 2003, Delkar established the Svargiya Sanjhibhai Rupjhibai Memorial Trust (SSRMT), named after his father, with the mission to improve quality of higher education in the tribal region of Dadra & Nagar Haveli.

[11][12] On 19 September 2020 in parliament, he raised the issue of "misbehaviour" by local officials "as part of a conspiracy" claiming that on Liberation Day (2 August), he was "denied the right to address the people of the region as an MP".

He stated that attempts of demolishing the local university SSR College of Arts, Science and Commerce were made which his father managed to stop through a stay order from the court".

[14] Delkar travelled to Maharashtra, to attend a court hearing of one of his supporters who was previously held in judicial custody at Silvassa sub-jail for carrying out illegal liquor smuggling in name of running a hotel.

[17] Maharashtra's Home Minister Anil Deshmukh sought "a probe into the BJP's role in Delkar's suicide", to check if he was being pressured by officials at the behest of the Central Government.

[19] First Information Report (FIR) under Section 306 (abetment of suicide), 389 (Putting person in fear of accusation of offence, in order to commit extortion) and 506 (criminal intimidation) and sections of Scheduled Caste and Scheduled Tribe (Prevention of Atrocities) Act, 1989 was registered against Praful Khoda Patel, collector Sandeep Kumar Singh, former police superintendent Sharad Bhaskar Darade, deputy collector Apurva Sharma, sub-divisional officer Manasvi Jain, police inspector Manoj Patel, DNH Law Secretary Rohit P. Yadav, talathi Dilip Patel[20] and BJP leader Fatehsinh V Chauhan who has a history of land grabbing disputes.

On 12 February 2021 Sunil Kumar Singh chaired a Lok Sabha Privileges Committee hearing[22] where Delkar announced, "If harassment to me is not stopped, then I would be left with no option but committing suicide.

[24] During the 10 March 2021 parliamentary Zero Hour session, Vinayak Raut declared: "MVA government in Maharashtra has deputed ATS (Anti-Terrorism Squad) to probe the matter but I request the PM through this House that the local Administration, SP and Collector should be sacked and tried under IPC Section 304 (culpable homicide not amounting to murder).