Bengaluru: Threat to blow up ISRO headquarters; nothing suspicious found during search

July 2, 2026

Security agencies were put on alert on Thursday after the Bengaluru-based headquarters of the Indian Space Research Organisation (ISRO) received an email threatening to blow it up. Police arrived at the scene and conducted an extensive search operation. However, no suspicious objects were found during the search, and the threat later turned out to be a hoax.

According to the police, a team—accompanied by a dog squad and the Bomb Detection and Disposal Squad (BDDS)—reached the ISRO headquarters following the receipt of the threatening email. As a precautionary measure, all employees present in the building were evacuated, and a thorough search of the entire complex was conducted. A senior police officer stated that no suspicious items were found during the operation, and the threat was subsequently declared a hoax.

The Bengaluru Police Commissioner stated that the investigation is being conducted in coordination with security agencies across the country. The cyber cell is working to trace the email’s IP address and identify the sender and their motive. Police said the Sanjaynagar police station is investigating the sender’s identity and other related aspects; the probe is ongoing.

Individual arrested for sending hoax bomb threat emails on June 29
Earlier, the Delhi Police arrested a man accused of sending hoax emails threatening bomb attacks on several organizations and an Air India flight. Officials stated on Thursday that the individual is a resident of Ghaziabad. The 36-year-old accused has been undergoing treatment for mental illness since 2008.

The emails sent on June 29 claimed the presence of bombs at several high-security establishments, including the National Investigation Agency (NIA), ISRO, the Nuclear Power Corporation of India Limited (NPCIL), the Defence Research and Development Organisation (DRDO), and the Ministry of Civil Aviation. A threatening email was also sent regarding an Air India flight bound for New York from New Delhi.

This triggered an immediate security check, and multiple agencies were alerted. Police stated that all relevant organizations and security agencies were informed. Standard security protocols were followed, and the threats were found to be hoaxes. Following the incident, the police launched an investigation that involved tracking the digital trail of the emails. During the technical investigation, the police analyzed two email accounts used to send the messages. A detailed examination of the email trail led investigators to a mobile number linked to these accounts.

Using technical surveillance, the police team located the suspect on June 30 in the Sanyog Nagar area of ​​Ghaziabad, Uttar Pradesh. Police arrived at the scene and questioned the suspect, Nishant Tyagi, at his residence. According to the police, Tyagi had completed his education through open schooling; he had enrolled in a bachelor’s degree program in 2010 but did not complete it.

Mental Health and Further Investigation
Preliminary inquiries revealed that he has allegedly been suffering from a mental illness since 2008 and has been undergoing treatment at various medical institutions for years. His family members also informed the police about his extensive medical history. Police stated that no explosives or suspicious materials were recovered during the investigation. The probe into the motives and circumstances behind sending the emails is ongoing, and further legal action will be taken based on the findings.