Until now, Suri had been CEO of NSN. Having joined Nokia back in 1995, Suri has led its NSN networking business since 2009, overseeing a major restructuring programme that took €1.5bn out of annual operating expenses, cut its workforce by around a quarter, and saw NSN divest itself of several business units not considered in tune with its "strategic focus".
"As Nokia opens this new chapter, the Nokia Board and I are confident that Rajeev is the right person to lead the company forward," said Siilasmaa, who will return to his role of chairman.
"He has a proven ability to create strategic clarity, drive innovation and growth, ensure disciplined execution, and deliver results. We believe that his passion for technology will help ensure that Nokia continues to deliver innovations that have a positive impact on people's lives."
Following the closing of the Microsoft deal on Friday, Nokia will hand over a series of dividends to its shareholders: €800m of ordinary dividends over this year and next, and a special dividend of €0.26 per share, or around €1bn in total, scheduled for 2014.
It's also planning to put the Microsoft cash towards cutting debt by €2bn in 2016, and repurchasing €1.25bn of shares next year.
Along with a number of execs that will leave Nokia to join Microsoft, Nokia announced a series of other departures. Its chief legal officer Louise Pentland, HR chief Juha Äkräs, and chief development officer Kai Öistämö are all leaving to "pursue opportunities outside Nokia".
Hans-Jürgen Bill joins the company as EVP of HR, Barry French EVP of marketing, and Maria Varsellona as chief legal officer, from 1 May.
With the devices and services unit gone, Nokia will be composed of three units: its mapping business Here, its patents and R&D arm known as Technologies, and its networking unit. The largest of the three, the networking business was historically known as NSN, but will in future just use the Nokia name.