My father had ancestral land that he sold in the 1990s. He later bought some farmland. In 2006, he gave all the land to my brother, without telling my sister and me. Can I legally claim my share of the property?

Yes, you and your sister have a legal right to claim your share of the farmland your father bought in 2006 as it is considered his self-acquired property. However, the land he sold in the 1990s is ancestral property and may not be subject to claim. You will need to file a legal claim to establish your share in the farmland.