New Delhi: In view of security concerns, Telecom Department (DoT) has asked mobile service providers to ensure by May 31 that they have the capability to track location of a caller which could be shared with security agencies on real time basis.

After talks between Home Ministry and DoT, the department has convened a meeting with Telecom Service Providers (TSP) to be held soon to work out the modalities for meeting the May 31 deadline for making location based servers operational, official sources said.

They said the deadline for Jammu and Kashmir for having such a facility has been preponed to March 31 as per the direction of Union Home Secretary R K Singh.

The Home Ministry had demanded that all service providers must be able to provide by May 31 the location details of their consumers with certain degree of accuracy and these should be part of call detail records in the form of longitude and latitude, and coordinates of cells sites, which can be made available to security agencies, they said.

The purpose is to track down the location from where the call had originated with an accuracy of 30-90 per cent in an area of 50-300 meters depending on the population and area.

It has asked them to first acquire capabilities for the specified numbers given to them and within three years the location details "shall be part of call record for all mobile calls", they said.