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