1. K Banerjee Center of Atmospheric & Ocean Studies, Institute of Interdisciplinary Studies, University of Allahabad, Allahabad, India
2. Department of Physics, University of Allahabad, India
3. K Banerjee Center of Atmospheric & Ocean Studies and M. N. Saha Center of Space Studies, Institute of Interdisciplinary Studies, University of Allahabad, Allahabad, India