1. Aryabhatta Research Institute of observational sciencES (ARIES), Nainital, 263002; India
2. Department of Physics, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, 273009; India
3. Department of Physics & Astronomical sciences, Central University of Himachal Pradesh, Dharamshala, 176215; India
4. Physical Research Laboratory (PRL), Astronomy and Astrophysics Division, Ahmedabad, 380 009; India