New Delhi, Dec. 4 -- Two colleges affiliated with the Delhi University received bomb threat emails on Wednesday morning, triggering panic and deployment of police and bomb squads at the colleges. The threats, however, were later declared hoaxes and police said they are trying to identify the sender of the emails. Police said the email was sent at 1.59am to Ramjas College and Deshbandhu College from the ID "adi_vasuki@outlook.com", with the subject "Three RDX IEDs placed in Deshbandhu college and Ramjas College to blast at 1.15 pm. Evacuate all ASAP" Deputy police commissioner (north) Raja Banthia said the principal of Ramjas College reported the threat early in the morning, after which bomb detection and disposal teams (BDDT) and police conducted checks at both colleges. No suspicious object was found. While no official figures have been shared, more than 500 schools last year and at least 300 this year have received bomb threats that later turned out to be hoaxes. Last year, a school student, 17, was "traced" after he had sent threatening emails to hundreds of schools, but he was not apprehended....