Joshi came in contact with the RSS in Delhi at a young age and took part in the Cow Protection Movement in 1953–54, in the Kumbh Kisan Andolan of UP in 1955, demanding halving of land revenue assessment. During the
Emergency period (1975–1977) in India, Joshi was in jail from 26 June 1975 until the
Lok Sabha elections in 1977. He was elected Member of Parliament from
Almora. When the
Janata Party (which then included his party) came to power forming the first non-Congress government in Indian history, Joshi was elected General Secretary of the Janata Parliamentary Party. After the fall of the government, his party came out of Janata Party in 1980, and formed the
Bharatiya Janata Party or the BJP. Joshi first looked after the Central Office as a General Secretary and later became Party Treasurer. As General Secretary of BJP, he was directly in charge of Bihar, Bengal and North-Eastern States. Later, when BJP formed a government in India under
Atal Bihari Vajpayee, Joshi served as the Human Resource Development Minister in the cabinet. In December 1991, Joshi held a
yatra, the
Ekta Yatra, intended to signal that BJP supported national unity and opposed
separatist movements. It began on 11 December in
Kanyakumari,
Tamil Nadu and visited 14 states. The rally's final stop to hoist the
Indian flag in Jammu and Kashmir on 26 January 1992 was considered unsuccessful, with minimal local participation. Joshi is known to have been influenced by the life and work of
Babasaheb Ambedkar,
Mahatma Jyotiba Phule and
Deendayal Upadhyaya. Joshi was a three-term M.P. from
Allahabad before he was defeated in the Lok Sabha elections of May 2004. He won election to the 15th Lok Sabha from
Varanasi as a BJP candidate. He also served as the home minister for 13 days government in 1996. Joshi was appointed as Chairman of the Manifesto Preparation Board of the BJP in 2009. He was honoured as "Proud Past Alumni" of Allahabad University by Allahabad University Alumni Association. He was a sitting MP from
Varanasi and he vacated that seat for Narendra Modi in 2014 Lok Sabha Elections. He later contested from
Kanpur and won from the constituency by a margin of 2.23 lac votes. ==Awards and honours==