Abstract Investigations to estimate acid mine drainage (AMD) from an underground mining complex (Madin-e-Haq) were carried out during 2004 to 2007. The results indicate that the mining complex is generating 126.60 liter per minute of AMD from 13 seepage points. The pH values of the 13 AMD points range from 2.5 to 7.4. The pH at the portal of the mining complex has been determined to have a composite average value of 3.4. Two groups of AMD seepage points have been identified: Group-A seeps have pH from 5.9 to 7.4 and Group-B seeps have pH from 2.5 to 3.1. Group-A constitutes 58% of total AMD inflow in the mine complex. Based on our findings, we propose that the Group-A water may be pumped out separately and utilized without any treatment for gardening, local irrigation, or disposal as surface effluent. We propose that the Group-B AMD, which is 42% of total inflows in the mining complex, be pumped out and neutralized with abundant local limestone prior to disposal as a surface effluent.