From north towards south, which one of the following sequences of the given hill ranges is correct ?

The correct sequence from north to south is Kaimur Hills, Sonpar Hills, and Ramgarh Hills. The Kaimur Hills represent the eastern portion of the Vindhya Range, extending from Madhya Pradesh towards Bihar [1]. Positioned slightly south of the Kaimur Range is the Sonpar Hills, located in the Sonbhadra region of Uttar Pradesh and parts of Madhya Pradesh [3]. Further south, the Ramgarh Hills are situated in the Surguja district of Chhattisgarh, forming part of the Chota Nagpur Plateau's southern extensions [1]. Geographically, the Kaimur Range lies north of the Son river, while the Sonpar Hills are located south of the Son river but north of the Ramgarh Hills, which are part of the northern Chhattisgarh highlands [1]. This latitudinal progression confirms that Kaimur is the northernmost and Ramgarh is the southernmost among the three.

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 2. The South Central Highlands > p. 54
2. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 5. The North Deccan (Maharashtra Plateau) > p. 57