Hi,
I am a Non EU citizen (from india )  currently staying at germany with D catogary work visa for Germany ,

Now my client want me to visit france and hungary for some project work 

I am in process of getting Visa exention/Residance permit.


My query is

1. Can i vist france/hungary with my 3 month valid work Visa (D catagory) for germany ?

2. After getting workwork visa extention/residance permit (eAT card) card can i visit France/hungary for project work  with that, will there be any problem. some were it is mentionted that you can only visit other countaries but can not able to work there.( i will be employee of german company will only go for project duration)

3. If no for above two questions what is other way ? i had read some where that Non EU national can visit france for work on company letter if they hold valid residance permit of any EU contry.

4. Do i need to apply for Hungary WP sepratly ... howevere i have read somewhere that you can not have WP of two EU countries same time
5. About blue card it it manadatory to saty for 18 months to get a blue card, also can i work in hungary with german blue card.

Early help will be aprriciated .

Thanks and regards

You need to have workpermit to work in any EU country, other than your country of residence.