34-year-old Siraj Ahmed who managed to enter the company premises carrying a machete injured three people including a woman.
The man who purchased a brand new machete assaulted Hemalatha who sustained head injuries before attacking Ashish Tiwari and Manoj.
The guards later managed to take him down and hand him over to the police.
Siraj, a resident of HBR layout was sacked for poor performance three years ago. Reports say that he even had a history of psychological disorders including depression.