No, a 5paisa account cannot be opened online if the Aadhar is not linked to a mobile number. Moreover, Aadhar linking with PAN is mandatory for new demat accounts.

You can still open a 5paisa account by following their manual account opening process i.e., offline account opening process.

To link your mobile number to your Aadhar card, please visit your nearest Aadhar Seva Kendra. You can locate the closest center using their official website: ttps://appointments.uidai.gov.in/bookappointment.aspx