New Delhi/March,13 :(KNS)     Yashwant Sinha, former Union Finance Minister under Prime Minister Atal Bihari Vajpayee, today joined the Trinamool Congress weeks ahead of the West Bengal Assembly election. The 83-year-old former senior BJP leader had quit his party in 2018. His joining the Chief Minister Mamata Banerjee-led party is likely to be viewed as a prize catch for an outfit that has seen a steady outflow of both leaders and cadres in the past few months.(KNS)