The first International Conference on Vibration Engineering and Technology of Machinery (VETOMAC) was organized at IISc Bangalore, India, in the year 2000 with the intention of encouraging scientific and technical cooperation and exchange across the globe. The 20th VETOMAC will be held at the Indian Institute of Technology Guwahati, India, from 18th to 20th December 2025. This conference is the twentieth in the series of annual symposia that started in Bengaluru, India (2000), and was subsequently held in Mumbai, India (2002), Kanpur, India (2004), Hyderabad, India (2007), Wuhan, China (2009), New Delhi, India (2010), Hong Kong (2011), Vaddeswaram, India (2012), Nanjing, China (2013), United Kingdom (2014), Taiwan (2015), Poland (2016), Queensland, Australia (2017), Lisbon, Portugal (2018), Curitiba, Brazil (2019), Bangalore, India (2021), Kathmandu, Nepal (2022) and Roorkee, India (2023), Gdansk, Poland (2024).