Mumbai: Mumbai’s elite anti terror squad ‘Force One’ has conducted a mock drill at Mantralay on Monday night. For this, the entire Mantralay premises was quardened off and all the roads that led to Mantralay were closed. Mumbai was always on the hit list of terrorist organisations. As per the official it was a routine exercise, but since it is better to take precautions of any specific threat or the reason of this mock drill is not revealed by the Mumbai Police.