1. Department of Mathematics, Acharya Nagarjuna University, Ongole, India
2. Division of Mathematics, Department of Sciences & Humanities, Vignan's Foundation for Science, Technology and Research, Vadlamudi, India
3. Department of Mathematics, National Institute of Technology, Jamshedpur, India
4. Department of Mathematics, ISF college of Pharmacy, Moga, India
5. Department of Mathematics, Visvesvaraya National Institute of Technology, Nagpur, India