He is the son of veteran politician K. M. Mani[1] and the Chairman of Kerala Congress (M).

[4] In 2007, he was elected as the General Secretary of Kerala Congress (Mani) party.

[1] He won the 2009 Lok Sabha election from the Kottayam constituency, by a margin of more than 70,000 votes over K. Suresh Kurup of CPI(M).

[6] UDF expelled KEC(M) from the alliance on 30 June 2020 citing the District Panchayat presidency dispute.

[7] Later, Jose K. Mani and his party KEC(M), joined the LDF(Kerala) in October 2020.