The schools received email specifying a potential bomb blast in classrooms at 11 am on Tuesday; the threats, however, turned out to be hoax.

This comes a day after a blast occurred along the boundary wall of the Central Reserve Police Force (CRPF) school in Prashant Vihar area of Rohini in the national capital.

The schools affected by the hoax threats include two in Delhi--one in Rohini and another in Dwarka--as well as one in Hyderabad.

Several Central Reserve Police Force schools nationwide received hoax bomb threats via email, including two in Delhi and one in Hyderabad. The warnings, sent to school management, arrived late Monday night,