Identification of critical ground motion features for seismic fragility studies considering soil-structure interaction Soil Dynamics and Earthquake Engineering Srishti Singh Indian Institute of Technology BHU, Varanasi and National Institute of Technology, Jamshedpur, India Manish Kumar Indian Institute of Technology BHU, Varanasi and Jamia Milia Islamia, New Delhi, India Saurav Dutta Indian Institute of Technology BHU, Varanasi and National Institute of Technology, Silchar. India Vishwajit Anand^ Indian Institute of Technology BHU, Varanasi *sole author ^corresponding author