All of your family to be shifted to another State and want to get ration card in that State. If this is what you wanted now, surrender your existing Kerala ration card to your TSO / CRO and obtain a surrender certificate from there. This surrender certificate to be produced when you apply for new ration card in the new location outside Kerala.
Application Form for Ration Card Surrender Certificate to Transfer from Kerala to Other State to be downloaded, printed and filled-in with required information. You have to specify the reason why you want to surrender your existing ration card in Kerala. Then submit it with supporting documents to your concerned TSO / CRO.
This surrender certificate is required only when all the members shifted to another state, else if, you want any one member to be retained in the state and want to continue buying rationing articles, reduction certificate to be used.