We acknowledge grants received through the UGC Networking scheme, from UGC, Govt of India. AK also acknowledges the Department of Science and Technology (DST), Govt. of India for financial support through SR/FTP/PS-068/2010. In the United States, this materials is based upon work supported in part by the U.S. Department of Energy, Office of Science, NEUP under NU-12-KY-UK-0201-05, and the U.S. National Science Foundation under PHY-0956310, the Cowan Physics Fund at the University of Dallas, and the Kinnear Fellowship of the US Naval Academy. We acknowledge with appreciation the many contributions of accelerator engineer Harvey Baber.