A day after PM Narendra Modi’s sarcastic remark questioning the seats won by Congress in MLC polls, the party shot back that the PM should introspect why BJP lost in his constituency Varanasi, RSS headquarters of Nagpur, and other places. The Congress on Thursday hit back at Prime Minister Narendra Modi over his criticism of the party's performance in the MLC elections, asking him to stop “trolling and sermonising” and introspect.