Nayak, Nayaka, Nayakar, Nayakkar, Naik, Naiker, Naicker, Naickan, Naiken, Nayakkan, Nayan, Nayar, Nayanar, Nair, Naidu, Nayudu or Naidoo is a common title used by various caste and ethnic groups across India. They are all derivatives of the original SanskritNayaka, meaning a leader. This cast known as Kapu(Pedda Kapu) and Kamma(Pedda Kamma) which are Major and Forward Castes in Andhra Pradesh. In Kerala, the term Nair, Nayar, Nayanar etc. is said to be the adoption of the Sanskrit word Nayaka in Malayalam.