Sometimes we received many unknown callers and we don't know who is calling.for this problem, a android application has been created to know the the location and name of the unknown caller. If you don't have any android device then don't worry about this, a website is there for you know the location and username of any Indian mobile number.
Here are the name of the apps and the website who provide this facility
Bollywood Motion : Its a mobile tracking site but you also send unlimited message from here without registration.
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