1. PG & Research Department of Physics, Nehru Memorial College (Autonomous), Affiliated to Bharathidasan University 1 , Puthanampatti, Tiruchirappalli 621 007, India
2. Department of Nonlinear Dynamics, School of Physics, Bharathidasan University 2 , Tiruchirappalli 620 024, India
3. Department of Aerospace Engineering, Indian Institute of Technology Madras 3 , Chennai 600036, India
4. Centre for Excellence for Studying Critical Transitions in Complex Systems, Indian Institute of Technology Madras 4 , Chennai 600036, India