Ms. Soni Rai, Indian Institute of Technology Roorkee, Roorkee, India, Dharmendra Pratap Singh, Indian Institute of Technology Roorkee, Department of Earth Sciences, Roorkee, India, I.V. Satya Chanakya, Indian Institute of Science, Centre for Earth Sciences, Bangalore, India, Sambuddha Misra, Indian Institute of Science, Bangalore, Centre for Earth Sciences, Bangalore, India and Rajeev Saraswat, National Institute of Oceanography, Goa, India