Indian security agencies have placed major cities on high alert, amid warnings of possible threats to Jewish establishments during the Hanukkah period, according to Indian media reports.
Security was stepped up nationwide following the deadly attack in Sydney, with additional police deployed at synagogues and other Jewish sites.
Security agencies have increased their manpower in Delhi, Mumbai and Bengaluru, Indian media reported.
A senior police officer told media measures were based on "specific intelligence inputs", with alerts issued to local police stations and anti-terror units instructed to monitor suspicious activity and potential radicalisation.
Jewish and Israeli-linked sites in India have been targeted before.
During the 2008 Mumbai terror attacks, militants killed seven people at Nariman House, a Jewish centre. In 2012, the wife of Israel's defence attaché was injured in a car bombing in New Delhi, an attack Indian authorities linked to Iran. A blast near the Israeli embassy in 2021 was later attributed to Iran's IRGC Quds Force. In 2023, police in Pune arrested two men with explosives, drone equipment and images of Mumbai's Chabad House, underscoring ongoing concerns about threats to Jewish targets in India.