The Chief Executive of Infosys, Vishal Sikka, has resigned from his post with an unconventional and lengthy letter blaming "personal attacks".
In the letter Mr Sikka said the "continuous drumbeat of distractions" contributed to his decision to resign.
It follows public criticism of the company and its board by its founders.
Infosys is one of India's largest IT services firms. Shares in the firm plunged 9% following news of Mr Sikka's departure.
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