How to stamp your leadership authority while dealing with Multi nationals having multi cultural background. ???

That is one of the most important skill for project managers.We can do that through:1- Clear objectives.2- Common understanding.3- Fair rewarding system4- Make performance is the main factor for rewarding.

Good reply from Mr. Raafat. In addition to Mr. Raafat's answer, I would add few more points:

1. Being impartial with everyone,

2. Spending time to get everyone on the same page, and create trust among cross-cultural team members

3. Remove cultural differences, make the team "one voice, one team".

4. Identify issues arising due to different timezones, different cultures and try to minimize it on project as well as on people.