When a former Speaker of Tamil Nadu forgot to cast a crucial vote in Lok Sabha

A slip-up occurred on April 17, 1999 when Prime Minister A.B. Vajpayee lost the vote of confidence. AIADMK Parliamentary Party leader Sedappati R. Muthiah forgot to cast his vote. His abstention came as a surprise as it was AIADMK leader Jayalalitha who withdrew support to the government, forcing Vajpayee to move the motion of confidence