Places of research, research will be carried out by the company, so researchers will write a letter to himself, and describes the details of the research company.
Places of researchers will be carried out at the company. Thus, the researchers write letters to relatives and Anu describes the details of the research to the company.
Research facility of researchers will be carried out at the company. So the researchers to write a letter to ask permission and explain about the details about the research for the company.