Pls clarify my point?

hindu couple married for last 2 yrs. they invested in building a house with a loan taken frm a nationalised bank jointly in their name. the land was brought and the house was constructed there.everything jointly in their name. now due to differences they are seperate. the wife's name is the first name of the loan agreement. now the house has been constructed but is nw locked.the husband is not asking any financial help from wife and he himself is paying the emi amt to bk. now if he files for divorce can the wife claim anyhting frm the house. the pre-emi's and amt to builder was given by her. if not , will there be any legal prob in future because she is the first name inthe loan agreement . pls clarify.