Following a successful stint as Robi managing director and CEO for five years, Mahtab Uddin Ahmed has decided not to renew his contract. 

Mahtab's term with Robi will officially come to an end on October 31, but he has decided to go on leave with immediate effect. 

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Robi Chief Financial Officer M Riyaaz Rasheed, in addition to his current role, will serve as the acting CEO with immediate effect. 

Chairman of Robi Board of Directors, Thayaparan Sangarapillai said: "On behalf of the Board of Directors, I would like to thank Mahtab for establishing Robi as the leading digital service provider of the country." 

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As Robi's first home-grown CEO, Mahtab took the company to a new height of success that includes achieving a leadership position in 4G, several path-breaking innovative digital initiatives, and the biggest ever IPO.