I am from India,i have been offered a job by a local bank of Abu Dhabi where I currently work on third party payroll.I have got my offer letter on mail and at the time of selection I have given my documents as my final qualification degree,photos and passport photocopy. And now also signed offer letter. Kindly tell me the visa process and approax how much time it will take as it has been proceesed by company 8 days back.
From what you say it seems like your company has already applied for you entry permit into Abu Dhabi. I can't tell for certain how long it'll take for this to get approved but usually you should have an outcome within 30-45 days.
However, this is only the first stage of the process. Once you have received the entry permit, you'll be able to go to Abu Dhabi and then you'll have to have medical tests carried out before you are granted the relavent work permit and residence visa.
Have a read through the Expat Arrival's page on Work Permits for Abu Dhabi and Visas for Abu Dhabi for more information.