A Mumbai-based delivery boy was arrested for allegedly sending threat mails to senior political party leaders, including Delhi Chief Minister Arvind Kejriwal, the police said on Friday.

Sources said the 28-year-old delivery boy Abhisekh Tiwari sent two emails to Kejriwal in the last week of July. He thought that the mails might have gone unnoticed, they said.

In order to gain prominence, he sent a bomb threat mail to the headquarters of the Indian National Congress, sources added.“A complaint was received by the police from the office of the Delhi Chief Minister.

Three teams of CyPAD were immediately formed to nab the accused, the officer said.“Based on technical analysis of inputs collected regarding the origin of the email, connected mobile phone and IP logs, teams were rushed to Mumbai and Kanpur to locate the suspected user of the relevant email ID,” he added.

The suspect, however, had gone underground and was leaving very few digital footprints, the DCP said.Following an analysis of technical inputs, his location was zeroed to Nala Sopara in Mumbai, a densely populated four days ago, the police said.

The team in Mumbai searched through hundreds of ‘chawls’. The accused was finally nabbed from a ‘chawl’ in Nala Sopara area of Mumbai, the DCP added.

Tiwari is a resident of Unnao in Uttar Pradesh but has been living in Nala Sopara since 2016.He works as a delivery boy of a furniture foam distributor.

“A school dropout, he was not satisfied with his job and his life, and wanted to do something big to draw the attention of people. He came up with the idea of sending threat emails to political leaders in July this year,” the officer said.The first such mail was sent to a local municipal office bearer of a major political party in Mumbai, he said.

Disappointed with the lukewarm response, he upped the ante and decided to send threat mails to senior political leaders, the DCP said.