Such integration in most cases implies redundancies. Nokia has 9,000 employees in India, almost a tenth of its global workforce. Microsoft has 6,000 employees here, out of its global strength of 97,000. It's unlikely that there will be much overlap at the engineering, support and R&D levels, because Nokia is a devices company, and Microsoft largely a software company.
But in all of the divisions that Ballmer's mail mentions as being integrated, layoffs are likely. Anshul Gupta, principal research analyst in Gartner, said there could be redundancies.