tumbled as much as 24% on Thursday, a day after the troubled telecom operator board accepted billionaire-industrialist
Kumar Mangalam Birla
's request to step down as non-executive chairman.
Birla had engineered the merger of IdeaCellular, which was part of his
Aditya Birla Group
, and the
Plc in 2018 to form
, creating what was the country's largest telecom operator at that time.
Birla, who has a net worth of $14 billion according ...