Comment on Basics on Options Shorting/Writing
https://www.dropbox.com/s/kfytxx99dfxg5s4/ZerodhaDematerializationRequest.pdf?raw=1
3 copies of the this form duly signed by shareholders along with original physical shares held in the name of the person who has a demat account at Zerodha. Demat charges are Rs 10/- (Subject to minimum of Rs.25/- per ISIN)