In 1991 Jayalalithaa became chief minister, Tamil Nadu's youngest, for the first time. She earned a reputation for a punishing work ethic and for centralising state power among a coterie of bureaucrats; her council of ministers, whom she often shuffled around, were largely ceremonial in nature. Despite an official salary of only a rupee a month, Jayalalithaa indulged in public displays of wealth, culminating in a lavish wedding for her foster son in Madras in 1995. In the 1996 election, the AIADMK was nearly wiped out at the hustings; Jayalalithaa herself lost her seat. The new Karunanidhi government quickly filed several corruption cases against her, and she had to spend time in jail. Her fortunes revived in the 1998 general election, as the AIADMK became a key component of Prime Minister Atal Bihari Vajpayee's government; her withdrawal of support toppled it and triggered another general election just a year later.