Supporting information: “Machine Learning Prediction of Interaction Energy in Rigid Water Clusters” Samik Bose 1 , Diksha Dhawan 1 , Sutanu Nandi 2 , Ram Rup Sarkar 2 and Debashree Ghosh 1,* 1 Centre for Mathematical, Computational and Data Science, Indian Association for the Cultivation of Science, Kolkata - 700032, West Bengal, India 2 Chemical Engineering & Process Development (CEPD), CSIR-National Chemical Laboratory, Pune - 411008, Maharasthra, India Email: debashree.ghosh@gmail.com Phone: +91-033-24731103 S1 Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is © the Owner Societies 2018