Complex sentence: Aadhaar program is the largest biometric database in the world; i.e. currently 500 million people (5 billion fingerprints, 1 billion iris image, 500 million face photo) with 6 peta byte of data.
Split into simpler sentences: Aadhaar program is the largest biometric database in the world. Currently it has 500 million people (5 billion fingerprints, 1 billion iris image, 500 million face photo) with 6 peta byte of data.