1. Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India
2. Inter-University Center for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007, India
3. Department of Physics, Central University of Kashmir, Ganderbal 191201, India
4. Tezpur University, Napaam 784028, India