and inscriptions of all parts of India along with the regional languages in the subsequent centuries. The copper-plate charters of the Pallavas, the Cholas and the Pandyas documents are written in both Sanskrit and Tamil. Kannada is used in texts dating from about the 5th century and the Halmidi inscription is considered to be the earliest epigraph written in the Kannada language. Inscriptions in Telugu began to appear from the 6th or 7th century. Malayalam made its beginning in writings from the 15th century onwards. North India In north India, the Brahmi script was used over a vast area; however, Ashokan inscriptions are also found using Kharoshthi, Aramaic and Greek scripts. With the advent of the Saka-Kshatrapas and the Kushanas as political powers in north India, the writing system underwent a definite change due to the use of new writing tools and techniques. Further development of the Brahmi script and perceivable changes in its evolutionary trend can be discerned during the Gupta period: in fact, the Gupta script is considered to be the successor of the Kushana script in north India. From the 6th to about the 10th century of the common era, the inscriptions in north India were written in a script variously named, e.g., Siddhamatrika and Kutila ("Rañjanā script"). From the 8th century, Siddhamatrika developed into the Śāradā script in Kashmir and Punjab, into Proto-Bengali or Gaudi in Bengal and Orissa, and into Nagari in other parts of north India. Nāgarī script was used widely in northern India from the 10th century onwards. The use of Nandinagari, a variant of Nagari script, is mostly confined to the Karnataka region. In central India, mostly in Madhya Pradesh, the inscriptions of the Vakatakas, and the kings of Sarabhapura and Kosala were written in what are known as "box-headed" and "nail-headed" characters. It may be noted that the early Kadambas of Karnataka also employed "nail-headed" characters in some of their inscriptions. During the 3rd–4th century, the script used in the inscriptions of Ikshvakus of Nagarjunakonda developed a unique style of letter-forms with elongated verticals and artistic flourishes, which did not continue after their rule. South India The earliest attested form of writing in South India is represented by inscriptions found in caves, associated with the Chalukya and Chera dynasties. These are written in variants of what is known as the Cave character, and their script differs from the Northern version in