This is my response to you:
1. Since it is at belated stage and you have reasons to believe that it is genuinely to be your property then you must file suit in the court;
2. The period of limitation is 12 years to file a suit, so you are well within the limitation period;
3. You will need to file a suit for wrongful transfer of property and the fraud committed on your documents and property records. You will also require to get a stay order against the sale of the property and injunction order against your brother;
4. Engage services of a lawyer to help you assist with the documents from the registrar and collector office;
5. You will also need to file a police complaint to the police station under 420 and forgery sections of the IPC;
6. You will then need to contest the matter against your brother or whosoever is staking his/her claim on your property;
7. If there are disputes regarding NRI holding property, please read this government website link: http://www.mea.gov.in/property-related-matters-of-nri-oci.htm