<ul data-eligibleForWebStory="true">Tata Group Chairman N Chandrasekaran described the Air India crash that took 241 lives as one of the darkest days in the group's history.Investigative teams from India, the UK, and the US have arrived in Ahmedabad for the crash investigation, with Tata Group pledging full cooperation.Chandrasekaran emphasized the need for transparency in sharing findings about the crash to honor the victims and their families.The chairman urged patience in seeking explanations for the tragedy and committed to open communication once verified facts are available.Safety of Air India passengers was highlighted as a top priority when Tata Group took over, with a focus on supporting those affected by the crash.