The Communications Ministry has directed Telecos to Implement Mobile Number Portability [ MNP ] by September 2010.
Mobile Number Portability which allows Users to change ther Operator without having to change ther Number Could cause serious troubles to Top Operators in the country as they could loose ther High End Users in circles where they dont have 3G Spectrum
New Entrants like Aircel which have been waiting for MNP to bag the high spending users , the chances to get them have just increased as they have got 3G Spectrum in many circles
Airtel could loose in circles like Maharashtra , Gujarat, Kolkata & Kerala,
Vodafone in Karnataka, Kerala & Rajasthan
RCOM in Maharashtra , Gujarat & Uttar Pradesh