Politics (1984-1987)
In 1984, Amitabh took a break from acting and briefly entered politics in support of long-time family friend, Rajiv Gandhi. He contested Allahabad's Lok Sabha seat against H. N. Bahuguna, former Chief Minister of Uttar Pradesh and won by the highest victory margin in general election history (68.2% of the vote). His political career, however, was short-lived: He resigned after three years, calling politics a cesspool. The resignation followed the implication of Bachchan and his brother in the "Bofore scandal" by a newspaper, which he vowed to take to court. Bachchan was eventually found not guilty of involvement in the ordeal.
His old friend, Amar Singh, helped him during a financial crisis due to the failure of his company ABCL. Therefore Bachchan started to support Amar Singh's political party, the Samajwadi party. Jaya Bachchan joined the Samajwadi Party and became a Rajya Sabha member. Bachchan has continued to do favors for the Samajwadi party, including advertisements and political campaigns. These activities have recently gotten him into trouble again in the Indian courts for false claims after a previous incident of submission of legal papers by him, stating that he is a farmer.
A 15 year press ban against Bachchan was imposed during his peak acting years by Stardust and some of the other film magazines. In his own defense, Bachchan claimed to have banned the press from entering his sets almost till the end of 1989.
Slump and retirement (1988-1992)
In 1988, Bachchan returned to films, playing the title role in Shahenshah, which was a box office success due to the hype of Bachchan's comeback. After the success of his comeback film however, his star power began to wane as all of his subsequent films failed at the box office. The 1991 hit film, Hum, looked like it might reverse this trend, but the momentum was short-lived as his string of box office failures continued. Notably, despite the lack of hits, it was during this period that Bachchan won his second National Film Award, for his performance as a Mafia don in the 1990 film Agneepath. These years would be the last he would be seen on screen for some time. After the release of Khuda Gawah in 1992, Bachchan went into semi-retirement for five years. In 1994, one of his delayed films Insaniyat was released but was also a box office failure.