The minimum age to open a Demat account in India is 18 years. Individuals below 18 can open a minor Demat account under a guardian's supervision. While minors can hold securities, trading is restricted until they turn 18. KYC documents of both the minor and guardian are required. Once the minor reaches adulthood, the account can be converted into a regular Demat account.
https://www.jainam.in/how-to-open-demat-account/
