New Delhi: A one-man protest outside the Parliament House on Thursday witnessed an interesting exchange between TMC parliamentarian Kalyan Banerjee and Congress Lok Sabha member Priyanka Gandhi Vadra, which progressed into Banerjee giving Vadra an on-the-spot capsule history on the background of the TMC formation.When Banerjee was holding a protest against 20 TMC defectors, Vadra, accompanied by a few others, approached him. Vadra smilingly said that they (TMC defectors) were originally in the Congress. "You took them from Congress to TMC," she told Kalyan Banerjee. In his characteristic gusto, Banerjee told Vadra that it was the TMC that made the 20 win the LS polls before they defected. The Congress in West Bengal has no strength to make anyone win elections, he added.