It is indeed the Subarnarekha express. It was introduced in the 1993 budget, and in some later reports, the MP himself referred to the train with that name. It is present in the 1999 timetable, departing from DHN at 6 AM and reaching TATA by 11:15 AM, running via Jharia.In the return it would depart from TATA at 1:20PM and reach DHN by 6:15PM.