There is a great chance to get the duplicate ration card in case of lost or damaged. You can apply to your District / Taluk Supply Officer to obtain new one. In Chennai city and its belt areas, filled in applications with documents must be filed with Assistant Commissioner of Civil Supplies. The leader of the family member only can apply for duplicate card, other should not apply (applications from any other member of the family will be rejected). With the written application form, you have to enclose the zerox copy of the card and write the reason for apply.
The documents are to be enclosed with the application form…
The ration card number and FPS code.
Ration card number or xerox copy of the lost family card and name of the fair price shop
Proof of residence in the address in the ration card
Proof of current residence (as for a new family card)
The charge for duplicate card Rs.10 only
The inspection is to be carried out with 45 days of the application being filed with the AC or TSO office.