• coal mines labour welfare fund

कोयला:    carbon coal collier brown coal lignite fuel

कोयला खान:    coal mines colliery

खान:    mine repertory working workings khan pit coal pit

श्रम:    ado exercise toil effort labor Labour exertion

श्रम कल्याण:    labour welfare welfare of labour श्रम ado

श्रम कल्याण निधि:    labour welfare fund

कल्याण:    benediction felicity interest good well cause

कल्याण निधि:    welfare fund

निधि:    fund funds prize treasure Treasury treasure house