The app has also doubled its daily new users in less than three months, Truecaller said in a statement today.
As of November, India accounted for over 45 million users and 600,000 new users are being added every week from the country.
Truecaller allows users to identify unknown numbers, block unwanted calls, and search contact information among people and businesses.
In October of this year, the company received USD 60 million in funding from VC firms Sequoia Capital, Atomico, and Kleiner Perkins Caufield Byers.
Truecaller also runs another app, Truedialer, to offer users details of a person before the outgoing call is connected. Launched in October, Truedialer already has more than two million users.