The Oldest Script in the Indian Subcontinet which is Deciphered is :

Correct option is C

The correct answer is (c). Brahmi is the oldest deciphered script of India, famously deciphered by James Prinsep in 1837. Most modern Indian scripts are descendants of Brahmi.
Information Booster

• Brahmi script was used by Emperor Ashoka for most of his major rock and pillar edicts.
• James Prinsep was an officer in the East India Company's mint and a scholar of the Asiatic Society.
• The script is written from left to right.
• It is considered the mother of Devanagari, Bengali, Tamil, and other Indian scripts.
• While Harappan script is older, it remains undeciphered despite many claims.

• Kharoshthi: Used primarily in the northwest (Gandhara), written from right to left; deciphered around the same time as Brahmi.
• Armaic: A script used in ancient West Asia; some of Ashoka's edicts in Afghanistan were written in Aramaic and Greek.