In Gujarat, at least two workers were killed and around 15 others injured in a blast that took place at a chemical factory in Panchmahal district today.  <br />'' <br />'' Chief Minister Bhupendra Patel asked the district collector to ensure speedy treatment of the injured workers. Mr. Patel also ordered quick relief and rescue work at the fire site.<br />'' <br />''<br />''Official sources said the blast took place in the morning at the chemical manufacturing plant of Gujarat Fluorochemicals Limited situated near Ranjitnagar village in Panchmahal district.<br />