i have also recieved call from same number +91 120 663 7800.
they told me that they told me that my resume is selected in ibm and i have to register to http://www.widyalaya.com. i refused them to pay money and so in fruad ke chakkar me mat aana. name change kar karke aapko lutate he. be aware of these fraud.
thanx for other comment to save my money.