Shimla, Aug. 19 -- Police have arrested two key inter-state drug suppliers from Punjab who were involved in two different drug trafficking networks and were supplying heroin in Shimla district along with other areas. The accused have been identified as Shubhkarman Singh alias Sultan (21), a resident of Tarn Taran, Punjab and Komalpreet Singh alias Laddi (26), a resident of Moga, Punjab....