New Delhi, May 13 -- A 55-year-old man who allegedly posed as an AC and RO mechanic to rob residents in northwest Delhi's Keshav Puram and Pitampura areas has been arrested, police said on Wednesday.

The accused, identified as Ajay Bagga alias Vijay Bagga, was apprehended following an extensive manhunt involving CCTV analysis, technical surveillance and local enquiries, they said. According to police, Bagga used to roam through residential colonies posing as a mechanic and ring doorbells to identify potential targets.

"The moment a resident opened the door, he would forcibly enter the house, launch a sudden attack and rob the occupants," a police officer said.

The accused had sent locals into panic after CCTV footage of him roaming in residential areas holding a plastic blue bag and hiding a 'gandasa' (machete) surfaced online, triggering a police hunt.

"A special team was formed to nab the accused after multiple incidents with a similar modus operandi were reported," Deputy Commissioner of Police (Northwest) Akanksha Yadav said in a statement.

She further said that using technical surveillance, CCTV footage analysis and human intelligence inputs, police tracked down and arrested Bagga near Gurudwara Nanak Pyau in Model Town.

Police said Bagga has been linked to two separate FIRs registered at Maurya Enclave and Keshav Puram police stations.

"In the first case, the complainant Sahil Kukreja alleged that Bagga, who was known to him for the past eight to nine years, came to his residence in Pitampura on April 21 on the pretext of meeting his father," the officer said.

After allegedly robbing a man of Rs 4 lakh and jewellery at knifepoint in one case and posing as an RO mechanic to target a woman in another, the accused was identified through CCTV footage and arrested after searches across 50 hotels.

Published by HT Digital Content Services with permission from Millennium Post.