IIL is one of the largest vaccine manufacturers in the world .
Indian Immunologicals Limited or IIL is a vaccine manufacturing facility and biotechnology laboratory in Hyderabad , Ooty and Rajkot .
IIL is one of the largest vaccine manufacturers in the world .
Indian Immunologicals Limited or IIL is a vaccine manufacturing facility and biotechnology laboratory in Hyderabad , Ooty and Rajkot .