  This paper has been removed by arXiv administrators because of overlap with
gr-qc/9601044, gr-qc/0212018, hep-th/0310151, gr-qc/0011066, gr-qc/0404001,
gr-qc/0304081, gr-qc/0501002, and gr-qc/0109017.
  This paper also has excessive overlap with the following papers also written
by the authors or their collaborators: gr-qc/0606022, gr-qc/0512080,
gr-qc/0511030, gr-qc/0603063, gr-qc/0603108, gr-qc/0511095, gr-qc/0607095,
gr-qc/0608050, gr-qc/0601141, gr-qc/0607011, gr-qc/0607082, gr-qc/0603044,
gr-qc/0607083, and others.
