New Delhi, Aug. 22 -- The Delhi Police has intensified its probe into the attack on Chief Minister Rekha Gupta, with investigators now seeking dump data of both her personal and official residences.

Officials said the move is aimed at piecing together a clear picture of the accused Rajesh Khimji's presence and movements before and during the incident.

According to senior police sources, dump data -- which provides details of mobile tower locations, device signals and call records of all numbers active in a particular area -- is being retrieved from telecom service providers for specific time windows.

Investigators are analysing whether Rajesh Khimji was present alone in the vicinity or if other suspicious devices and individuals were a...