I have just had a lengthy discussion with most likely the same Indian sounding male. On this occasion he said he was from the Computer Licensing Dept based at Cambridge (although pronounce CAMM Bridge). He stated he had been trying to contact me for sometime (he knew both my email address and my name), because of suspicious activity from my I.P. address.
I played along and he went on to say that people had been receiving emails from a Mr Mountford at an email address from my IP address seeking monies be donated. He also asked how many computers were at my home ( I made up a false answer). He then said he could help me prevent this OR Microsoft would cease my licence and said he would need to put me on hold and pass me over to a technician. Once on hold I ceased the call.
However I immediately received several phone calls back all from a private caller withheld number. In the end I did answer and it was the same male Indian accent. He said I would need to look at EVENT VIEWER on my Computer. However his time as I played along I quizzed him and asked he gave the following details - said his name was Matt Taylor (ie the detective in CSI New York), he gave his tel number as 122 32790610. When challenged this was not a UK number he said I could put an 0 in front of it!!! He gave an address for the Licensing Dept as Station Road Cambridge CB1 2FB
NB The Tel number gets you through to something about Ocktoberfest and the address is the Tamburlaine Hotel Cambridge.
Needless to say I terminated the call after telling him I would make enquiries with Microsoft and with the police to verify the details he had given. Of course I wont be wasting my time any further doing that!!!