Karachi: Qari Bashir, mastermind of attack on Rangers Camp in Karachi has been arrested.Home Minister Sindh Zia ul Hassan Lanjar while addressing a joint press conference with Additional IG CTD, Zulfiqar and SSP CTD Irfan Bahadar here said 4 terrorists had attacked Karachi transport company of Sindh Rangers on June 27.3 terrorists belonged to Afghanistan while one belonged to Bajaur.He said that all handlers of terrorists were giving directions to them from Afghanistan. The objective of terrorists was to hold people hostage and cause loss of life.During successful operation of Sindh Rangers 3 terrorists were killed and one was arrested in injured condition.