I am a 17-year-old. Can I open a Demat account in the SBI?
You can open a Demat account. A demat account can be opened in the name of a minor with a parent as the guardian. Note that it will not be a joint account and the parent shall not be considered joint owners of the shares held in the account. You cannot open it solely on your own. Though technically you are not allowed to operate it, you can do so through online mode if your parent/guardian allows you to.