Please let us know whether your GM is alive or not. If not has she left any WILL or did she die without leaving a WILL. If she had executed the WILL, then the property would devolve to the beneficiaries as per her WILL , if not, i.e.,died without leaving a WILL, then the property would devolve equally amongst legal heirs. Son1 will have equal right along with his siblings. Son1 can not be evicted because he is also co-owner of the property. Regarding the money to be recovered by bank, please let us know, who gave the property as guarantee, Bank would issue a legal notice through DRT to clear off the dues, if it does not happen, bank would attach the property and auction the property to recover its money and the left over money after auction would be given to the legal heirs.