Rajasthan is a state of vast geographical area. So, topographic conditions in the state are found to be different.
With the viewpoint of relief, Rajasthan has been divided into the following topographical regions:
1. Western desert region
2. Aravalli mountainous region
3. Eastern plains
4. South – eastern plateau region
Description of Eastern Plains of Rajasthan: Origin and formation of these plains has been done by silt carried and deposited by the rivers flowing in Rajasthan.
Extension: The extension of eastern plains of Rajasthan is in 23.9 per cent part of total area of Rajasthan. These plains are mainly spread in the districts of Jaipur, Dausa, Bharatpur, Dholpur, Karauli, Sawai Madhopur, Tonk, Ajmer, Bundi, Chittorgarh, Pratapgarh and Banswara. It is an even plains region which is very fertile due to the deposition of alluvial soil.
This eastern plain region of Rajasthan has been divided into the following parts:
1. Basin of Banas – Banganga: This plain formed by the rivers Banas and its tributaries is known as the plain of Me war in southern Rajasthan and as plains of Malpura – Karauli in the North. The main tributaries of river Banas are Berach, Khari, Mansi, Morale and Banganga. The slope of this plain is towards the east and north-east. The solo hills become hillock type at the height. The average height of this plain is 280 to 500 meters from sea level.
2. Central Mahi – Chhappan Basin: This plain is spread in the south-east part of Udaipur, Dungarpur, Banswara and southern region of Chittorgarh. It covers an area of 7056 square kilometres. The average height of this plain is 200 meters to 400 meters. It is called Chhappan in the local language of Salumbar-Sarada region and in Dungarpur and Banswara region it is called Bagar. Due to excessive number of rivers, it is also called the region of 100 islands.
Som, Jakham, Kagadar, Jhamari etc. are the main tributaries of river Mahi. The tribes of Bhil and Garasiya practice shifting agriculture that is called as walra cultivation in local language. Besides these two major regions, Chambal river has also formed a plain region called in the form of Chambal basin. This plain area is mainly extended in the districts of Kota, Dholpur, Karauli, Sawai Madhopur etc. This is a major and important fertile plain region of north-eastern Rajasthan.
