19 November 2010
The primary contractor is responsible for the entire project and coordinating the efforts of the subcontractors. The subcontractors are responsible for specific trades
11 December 2010
Contractor is a person to whom contract work has been given and who is responsible to the principal and he will be held responsible for any wrong doing . whereas a sub -contractor is appointed by the contractor for doing a part of work assigned to him . A sub-contractor usually have no direct nexus to principal