Can my parents transfer ancestral property without my knowledge

Respected madam/ sir, My name is Manish Saxena I did love marriage in 2006. My mother expired 2 years ago. As I is the eldest son in the family having two younger brothers. I didn’t know that my parents evicted me from the ancestral property. But after my mother expired the property was transferred to my younger brother and they get the NOC signed by me as well with proper ID proofs. I have few questions regarding the same matter – 1. If I was already evicted from the ancestral property then why did they ask for my signature with ID proof. 2. Now, can I claim on that property or not. 3. How can I know about their bank account details, nominees and the lump sum property they own? 4. What is the legal way to oppose to sign in the same situation for the remaining property as that was also written to them by my mother in her will. 5. Can my parents’ sale or transfer the ancestral property without my will or knowledge, I want to know that if the will was already written by my mot