1. Physical Sciences Division; Institute of Advanced Study in Science and Technology; Guwahati 781035 India
2. Life Sciences Division; Institute of Advanced Study in Science and Technology; Guwahati 781035 India
3. Department of Veterinary Surgery and Radiology; Assam Agricultural University; Guwahati 781022 India
4. Department of Parasitology; Assam Agricultural University; Guwahati 781022 India
5. Laser and Plasma Technology Division; Bhabha Atomic Research Center; Mumbai India