According to Koppen`s climatic classifications of India, the Great Northern Plains are represented by the Cwg Climate. To understand this classification, we need to have some knowledge of Koppen`s climate classification system.

Koppen`s system categorizes climates based on temperature and precipitation patterns. The Cwg Climate is a subtype of the Tropical Savannah climate (Aw), which is characterized by distinct wet and dry seasons. The "C" in Cwg stands for a mild subtropical climate, while "w" represents a pronounced winter dry season.

The Great Northern Plains in India, which encompass states like Punjab, Haryana, and Uttar Pradesh, experience a subtropical climate with moderate to high temperatures in the summer and cooler temperatures in winter. These plains also have a pronounced dry season during the winter months, which aligns with the characteristics of the Cwg Climate.

Alert - The correct answer should be 2 (Aw climate). The Great Northern Plains of India are actually represented by the Aw climate. The Aw climate is a tropical savanna climate, characterized by distinct wet and dry seasons. These plains experience high temperatures throughout the year, with a summer monsoon bringing most of the rainfall between June and September. The dry season occurs from October to May.