1. B.G.B.S. Women's College; Narsapur 534275 India
2. Nuclear Physics Department; Andhra University; Visakhapatnam 530003 India
3. Nitte Meenakshi Institute of Technology; Yelahanka, Bangalore 560064 India
4. Centre of Studies in Resources Engineering; IIT Bombay; Mumbai 400076 India
5. Sophisticated Analytical Instrument Facility; IIT Bombay; Mumbai 400076 India