Please let me know if Chidambara Mahatmyam comes under Skanda Purana then which khanda it is available and chapter numbers also. I came to know there are 26 chapters available. Is there any where Sanskrit or Telugu script available for the same.
According to Shastri, P. (1995) Introduction to the Puranas, New Delhi: Rashtriya Sanskrit Sansthan, pp.118–20, the Skanda Purana grouped into seven khaṇḍas (total of 26 chapters), each named after a major pilgrimage region and are called Mahatmyas. This does not include Chidambaram. The primary Siva kshetras included are Kedarnath, Arunachala and Varanasi.
The complete Skanda purana is available in Sanskrit.
Chidambara mahatmyam by E. A. Sivaraman, 1993, Bharatiya Vidya Bhavan edition, mentions that the mahatmyam is from Tamil.