New Delhi, Aug. 21 -- The Lok Sabha on Wednesday witnessed vigorous protests by the Opposition that nearly led to a scuffle between its leaders and ministers, prompted entry of marshals, and forced Union minister Amit Shah to change his seat during the introduction of three bills that seek to bar ministers from holding office after being arrested. A TMC MP was involved in a verbal duel with Shah, while a few other party MPs started throwing papers in front of Shah. MoS Ravneet Singh Bittu criticised the Opposition for the "shameful act". P8...