Enforcement Directorate (ED) has questioned IAS officer B Chandrakala in alleged connection with sand mining case. Chandrakala appeared before the ED around 11:30 am on Wednesday. The ED sleuths grilled her particularly about ignoring e-tendering process while allotting the mines and how she amassed huge assets in a short career span. The ED has raided the residence and office of B Chandrakala and residences of others accused in the case. The investigation in land mining case was initiated by Allahabad High Court in the year 2016.