How to value a unit?

Ch.Sree Rama Chandra Murthy (Manager Internal Audit) (33 Points)

13 January 2012  

Respected members,

         one of my clients,a sole proprietoy concern having 2 business units.Now they were started a new company in which the proprietor and his family members are the directors and share holders.Now the same co. wants to acquire one of the units in such proprietory concern.

         how i need to approach for this issue,pls provide your valuble advices in this regard.