The scientists, who have not been identified, are working in crucial nuclear, defence and space fields.
The names of these scientists were mentioned by Sarfaraz Nawaz, who was deported from Muscat, during interrogation and this was further corroborated by T Nazir, LeT’s pointsman in south India.
Sources said on Sunday that following corroboration of the threats, a security review was carried out after which it was decided to enhance the security of the scientists as a precautionary measure.
Both Nawaz and Nazir had played a key role in the Bangalore blasts. Based on the information from the interrogation of United States terror suspect David Headley and his accomplice, Tahawwur Rana, security around Bhaba Atomic Research Centre (BARC) and some Bollywood studios in Mumbai have already been tightened.
The government is also taking steps to strengthen security along the country’s coastline amid warning of possible sea-borne attacks.