The timing of this particular news couldn't be better. The Govt. Of India needs to really think this through in light of the latest PRISM NSA leaks. The infrastructure to set up something of the scale of the CMS would be quite a challenge considering the number of cell phone users per square kilometer. NATGRID which has been in news for some time , however not known by many does come at the intersection of the civil liberties / privacy versus national security debate. The CMS like the NATGRID would need to have a well defined access control mechanism to ensure who has access to sensitive info on citizens. I am not sure where does NATGRID stand in terms of its completion which was supposed to be done in multiple phases. NATGRID would integrate and consolidate info n data from multiple central , state databases which would include banks , credit card transactions , Indian Railways , Airline Reservation records , income tax , hotel bookings etc. CMS is in my opinion probably a subset of NATGRID. Neverthless even if its in interest of National Security, the level of breach of individal privacy needs to be thought through by the govt. From a tech and economic devleopment perspective govt initiatives like these are good for India. However , I do hope the govt takes into consideration the critical concerns and issues that arise with systems such as CMS and NATGRID else we could see an another " Snowden" rise in India and widespread dissent among the citizens who are seemingly losing patience with the govt more than ever in the recent times.