KARACHI: Convener Muttahida Qaumi Movement-Pakistan (MQM-P) Dr. Khalid Maqbool Siddiqui has said MQM is only powerful voice against extremism even in this era as they set an example by sending Mangla Sharma to the Assembly, who belongs to middle class without any fear. Mr. Siddiqui made these remarks while addressing Hindu community on Sunday. He maintained that a party could