Ancestral property rights?

No she couldnot change the proprty to her name no chance. Without your fathers written will she can not. The property is shared you by 4. If it is ancistral property then also you have share. You can take immediate action through lawer and can make your share come to you. Go to registr office get the copys of the documents of your property arrange a lawer send notice, they cant drag in your case. Find a good lawer. All the best.Give more information in this section and i will help you.