Department of Physics University of Burdwan Golapbag Burdwan 713104 West Bengal India;
Department of Physics A.P.C.Roy Government College Siliguri Darjeeling 734010 West Bengal India;
Applied Nuclear Physics Division Saha Institute of Nuclear Physics 1/AF Bidhannagar Kolkata 700064 India;
Applied Nuclear Physics Division Saha Institute of Nuclear Physics 1/AF Bidhannagar Kolkata 700064 India;
Applied Nuclear Physics Division Saha Institute of Nuclear Physics 1/AF Bidhannagar Kolkata 700064 India;
Applied Nuclear Physics Division Saha Institute of Nuclear Physics 1/AF Bidhannagar Kolkata 700064 India;
Department of Physics Government General Degree College at Pedong Kalimpong 734311 West Bengal India;
Department of Physics University of Burdwan Golapbag Burdwan 713104 West Bengal India;