A Housing Plot was bought by my father in my mother's name. My mother was also employed at that time. We are three children (2 Sons and 1 daughter) I am the second son. After my brother and me started earning, the house was further developed by availing a Housing Loan, for the first time, from a Local Co-operative Society (by mortgaging the land) and by taking into account my brother and my income and we both stood as guarantors (both government employed). There was no regular income for my father. After my mother expired, the property was transferred in my father's name with the written consent of all three of us as we are the legal heirs and necessary documents were submitted to the Housing Society for transferring the property in my father's name. We both were financially supporting my father in the repayment of EMI on the housing loan. Now due to some misunderstanding, my father dislike me and is in full support with my elder brother and his family. My father and my brother's family stay in that house. My wife is employed and we have build a separate house by availing a housing loan from a Bank. So my father feels that I am well to do and need not be given any share to me and my sister who also has her own house built by virtue of her employment. My father and my elder brother totally avoid me on the fear that I would claim a share in the property. I had shed my blood during my young age to construct that house and to bring up my family as a whole. But the situation is changed entirely after my mother's demise. I have one son and one daughter.
My question is :
1. Can my father give the entire property to my elder brother without any share to me and my sister ?
2. Am I and my sister eligible for a share in the property ?
3. If so, please advise me how do I proceed to get the share of the property ?