Understanding Plateaus and the Patland Series

The question asks us to identify which of the listed plateaus is not considered part of the "Patland series". To answer this, we need to understand the geographical characteristics and locations of the given plateaus.

The term "Patland" often refers to a specific type of plateau found in regions like the Chota Nagpur Plateau of India. These areas are known for their flat-topped hills, often covered with lateritic soil, locally called 'pat'.

Analyzing the Plateau Options

Let's examine each plateau mentioned:

• Hazaribagh Plateau: This plateau is located in the Chota Nagpur Plateau region of Jharkhand. It is known for its elevated, relatively flat surfaces and is characteristic of the 'pat' regions.
• Ranchi Plateau: Also situated in Jharkhand, the Ranchi Plateau is the largest plateau in the Chota Nagpur region. It shares similar geographical features with the Hazaribagh Plateau and fits the description of the 'pat' areas.
• Malwa Plateau: This is a large plateau in west-central India, primarily in Madhya Pradesh. It is characterized by rolling plains and is geologically distinct from the Chota Nagpur region, although it is a significant plateau.
• Deccan Plateau: This is a vast triangular plateau in southern India, covering a large part of the country. It is bordered by mountain ranges and is known for its extensive lava flows (the Deccan Traps) in certain areas. Its sheer size, location, and geological formation make it distinct from the other plateaus listed.

Identifying the Outlier Plateau

Based on the common geographical understanding and the typical association of 'pat' lands with the Chota Nagpur region (which includes Hazaribagh and Ranchi), the Deccan Plateau is the most significant outlier.

While the Malwa Plateau is geographically separate from the Chota Nagpur region, the Deccan Plateau represents a completely different and much larger physiographic division of India.

Therefore, the Deccan Plateau is not typically grouped with the plateaus characterized as 'Patland' or associated with the Chota Nagpur Plateau's specific features.