Kanshi Ram included him as a member of his team when he founded the Bahujan Samaj Party (BSP) in 1984. Mayawati was first elected to Parliament in 1989. Kanshi Ram founded the BSP in 1984. Reservation in India is a system under which one percent of government posts and seats in universities are reserved for backward classes and scheduled castes and tribes. During her political life, Mayawati supported reservations for the backward classes in both the government and private sectors, including communities such as quotas and religious minorities and economically weaker upper castes. A bill was approved in August 2012 that begins the process of amending the constitution to expand the reservation system for promotion to state jobs. Mayawati's career was marked by former Prime Minister of India P.W. V. Narrated by Narasimha Rao "" the miracle of democracy "". Millions of Dalit supporters see her as an icon and refer to her as "Behen-ji" (sister).
In its first election campaign in 1984, the BSP contested Mayawati for Bijnor in 1985 and Haridwar in 1987 for the Lok Sabha (lower house) seat of Kairana in Muzaffarnagar district. In 1989 he was elected as the representative for Bijnor with 183,189 votes, winning by 8,879 votes. The party won three seats in the 1989 national election and two in 1991. Mayawati was first elected to the Rajya Sabha (Upper House) of Uttar Pradesh (UP) in 1994. In 1995 she became the head of her party, the chief minister in a short-term coalition government, the youngest chief minister in history up to that point, and the first female Dalit chief minister in India. He won election to the Lok Sabha in two different constituencies in 1996 and elected to serve Harora. She became chief minister again in 1997 and again in alliance with the Bharatiya Janata Party from 2002 to 2003.
In 2001, Ram nominated him as the successor to the party leadership. She was elected the national president of the BSP for her first term on 18 September 2003. He was elected unopposed for the second consecutive term on 27 August 2006, for the third time on 30 August 2014 and for a fourth term on 28 August 2019. Mayawati first served as Chief Minister from 3 June 1995 to 18 October 1995. During this period, new districts of Ambedkar Nagar district and Udham Singh Nagar district were created. His second term was from 21 March 1997 to 20 September 1997. Under a campaign under his government, thousands of landless residents were allotted land on lease or gram sabha. His third term was from 3 May 2002 to 26 August 2003. He had suspended 12 IAS officers, including divisional commissioners and district magistrates. Six IPS officers were suspended for failing to maintain law and order, while 24 officers were warned for reform.