देखभाल  =  care
Animal welfare

कल्याण  =  comfort
Parents are responsible for the welfare their children.

कल्याण  =  happiness
The welfare of the nation.

कल्याणकारी सहायता  =  help
The government's social welfare department.

कल्याणकारी पद्वति  =  system
.

हित
For the common welfare