K.V. Aarthi - University of Madras
Hemamalini Rajagopal - University of Madras
S. Muthu - Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, Tamil Nadu, 604 407, India
B. Narayana - Mangalore University
Fazilath Basha Asif
Ahmad Irfan
Saleem Javed - Agra