%O This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. %D 2021 %A S Kachhara %A SV George %A R Misra %A G Ambika %I World Scientific Publishing Co Pte Ltd %T Evidence for dynamical changes in Betelgeuse using multi-wavelength data %L discovery10139793 %B Proceedings of the Sixteenth Marcel Grossmann Meeting (MG16)