BJP MP Sudhanshu Trivedi on Wednesday criticised West Bengal CM Mamata Banerjee over her protest against SIR. Recalling her past stand on infiltration, he said, "On August 4, 2005, she raised the issue of Bangladeshi infiltration in Indian Parliament 22 times in 14 minutes...What's wrong with Mamata Banerjee today?" Trivedi also accused her of blocking investigations and shielding infiltrators.