Devices in Parliament: Question Hour:

Members question ministers and hold the government responsible during Question Hour, which is the first hour of a parliamentary session. The most active time in Parliament is during Question Hour. The purpose of the questions MPs ask is to gather information so that ministers can take appropriate action.
Zero hour, is the period of time right after Question Hour when members bring up critical issues of public concern without warning. It’s a parliamentary innovation in India. In the rules of procedure, it is not mentioned.