Can I paste notice outside the house as a legal heir

My father and mother are equal owners of a flat in mumbai and my mother suddenly died in 2011 and then my father removed her name from society share certificate and became sole owner of the flat without my consent and then later my father transferred the property to my younger brother and then i send both of them a legal notice claiming my rights but the did not accept the notice. My advocate suggested me to paste a notice outside the house so he doesn’t sell the flat to third party. My younger brother did police complaint for the same and police told me that you are trespassing the property and gave me a warning not to paste the notice so I want to know am I allowed to paste notice outside the house as I have full rights in my deceased mother’s share. Can police stop me for pasting the notice and charging me as a trespasser. The police was supporting my younger brother and was indirectly threatening me to put behind the bars and I think he must have been bribed for doing this.