New Delhi: In a blistering attack on the government over alleged police excesses against students, Congress leader Rahul Gandhi on Wednesday urged Prime Minister Narendra Modi to sack Home Minister Amit Shah and demanded a Supreme Court-monitored probe into the "brutalities". The Leader of Opposition alleged that he was not allowed to speak in Lok Sabha and everytime he tries to speak there, he is "silenced". "As you saw today, the leader of Opposition is not allowed to speak in the Lok Sabha. Multiple times, (Union ministers Kiren) Rijiju, Rajnath Singh were allowed to speak and the excuse was that I said something about Home Minister Shah," Gandhi said. So it is our advice to the prime minister to sack Shah, he said.