Dr. M. Siyamalan received the India Science and Research Fellowship (ISRF)-2020 funded by the Department of Science and Technology, Government of India to conduct research activities in India (at the Department of Electronics and Communication Engineering, Malaviya National Institute of Technology, Jaipur) for a duration of three months in 2021. Due to Covid-19 pandemic, the commencement date of this fellowship programme has been postponed.