My brother sold our family land in Pune without asking me, what can I do?

I just found out that my brother sold our ancestral land in Pune last month without informing me. The land was jointly inherited by us from our father who passed away in 2020. I wasn't consulted or even aware of the sale, and I feel betrayed. What legal actions can I take to challenge this sale? I tried talking to him but he is avoiding my calls. Please help, I am really worried.