Property issue

My father passed away in 2009, he owns two land in B name and the remaining part was on his name and also few acres of agriculture land which I'm not aware where it is since we never came up with these topics to discuss with my dad anytime..he passed away due to cancer in 2009. Me and my sister had settlement of 5L each and didn't demand for any share in property as we had sof corner for my second elder brother is handicapped and he doesn't have a properly job. My eldest brother works in BMTC. They decided to share property equally.But now when my second brother wanted to sell the land for some issue between two as they have common entrance, my eldest brother is not giving the documents.We tried to pull documents online only then we got to know the property in sevanagar is registered on my eldest brother name just 10 days before my dad passed away.Second brother got a doubt regarding shivaji nagar property and asked for the document but he is not showing it and we are not able to fetch any details of it online nor offline. Recently we got a property id slip which shows my eldest brother name in owners column, but till today both are paying taxes based on katha bifurcation. Is the property really bifurcated among the two brothers or the owner is still my eldest brother and my second brother is brain washed .what can be done for this? Is there any possibility to get the share divided equally? If so how? If my second brother files a case are there chances for him to get his equal share?