Q. Which among the following hill ranges of South India are not spread in both Kerala and Tamil Nadu? Answer:
Palani Hills
Notes: Anaimalai
The hills straddle both sides of the state border Kollam District and Thiruvananthapuram District in Kerala and Tirunelveli District and Kanyakumari District in Tamil Nadu.
Cardamom
The Cardamom Hills are southern hills of India and part of the southern Western Ghats located in southeast Kerala and southwest Tamil Nadu.
Palani Hills
The Palani Hills are a mountain range in Tamil Nadu. The Palani Hills are an eastward extension of the Western Ghats ranges, which run parallel to the west coast of India
Agastyamalai
Agastyamalai or Agasthyarkoodam is within Neyyar Wildlife Sanctuary in the Western Ghats of South India. The mountain lies in Thiruvananthapuram district of Kerala and Kanyakumari and Tirunelveli districts of Tamil Nadu.