What is the meaning of 'Orange' and 'Red' warnings issued for states amid rains?

The IMD issues colour-coded alerts for rainfall in states to inform people of its intensity. 'Orange' alert is a 'be prepared' warning issued when extremely bad weather is expected and is for a rainfall range between 115.6-204.4mm in a day. 'Red' alert is a 'take action' warning, which is issued when a rainfall above 204.5mm is expected in a day.