A three-day camp of Brigade 20 of the St. John Ambulance Organisation, a voluntary organisation that functions within Southern Railway to render first aid to the sick and the injured, concluded here on Saturday. A general salute and march past by the brigade members marked the valedictory. S. Ramprakash, Chief Medical Director, Southern Railway, was the chief guest at the function. Divisional Railway Manager Rajesh Agrawal, Additional Divisional Railway Manager V. Rajeevan, Chief Medical Superintendent V.N. Mathur, and Southern Railway Women’s Welfare Organisation president Deepti Agrawal attended the function.