Drought

Drought is a rainfall-scarce period, affecting the availability of water for irrigation, drinking,etc 

They are classified into three types:

• METEOROLOGICAL drought is a prolonged dry spell in periods when rainfall is expected 
• HYDROLOGICAL drought is when scarcity of water begins to hit normal supplies in the system 
• AGRICULTURAL drought is when scarcity of water begins to affect the agricultural production

Source: The Indian Express