Two persons suffered injuries after sparks emanated from an electrical substation on the premises of Mahindra Satyam's Info City in Madhapur on Sunday morning.
The maintenance workers -- Kasim (23) of Gajularamaram and Mohinuddin (27) of Tolichowki were attending to repair works when sparks flew from the substation resulting in burn injuries.
They were hired by a company which was taking care of the substation maintenance, police said.
Company officials shifted the injured persons to a corporate hospital in Madhapur where the condition of Kasim is critical.
