Indo-Thai workshop on stellar variability & star formation was held at ARIES, Nainital, Uttarakhand. The one-day workshop was organized by Aryabhatta Research Institute of Observational Sciences (ARIES), Department of Science and Technology (DST), that functions under the Ministry of Science & Technology. Aim: The workshop aimed to strengthen the ongoing collaboration and expand the Indo-Thai cooperation from stellar sources to other areas of astronomy and astrophysics such as extra-galactic astronomy and instrumentation. Highlights: The workshop deliberated on various topics, including stellar variability, star formation, stellar abundance, transient events, and instrumentation. The workshop hosted 14 talks by the scientists and students of both the countries. It highlighted the setting-up of the cooperation in the fields of Science and Technology by DST and the Ministry of Science & Technology in Thailand after the sanctioned of two joint bilateral programs for joint research in the area of Astronomy and Astrophysics. The workshop discussed the collaborations and joint ventures that help to exchange the knowledge of the investigators involved in the projects and gives the opportunity to train the young researchers. The importance of Indo-Thai collaboration in science and technology was strengthened. It also invited the astronomers from India and Thailand for cooperation in space science and instrumentation. Aryabhatta Research Institute of Observational Sciences (ARIES): Established on: 20 April 1954 Location: Nainital, Uttarakhand ARIES is an autonomous body that functions under the Department of Science and Technology (DST), Ministry of Science & Technology. The research institute specializes in Astrophysics, Astronomy, and Atmospheric Sciences.