whatz the duration of the course in graphic desigining

Hi Vivek, There are many institutes and each of which may differ in terms of the course duration depending on the course level being offered. It would be better if you could go through the following link consisting of the list of institutes offering Graphic Design along with the related information

Though graphics desining has many fields and courses you may learn Adobe Photoshop, Corel Draw, and Adobe Pagemaker in 6-8 months,for further depth you may join any field such as Dress Designing, 3D simulation, Maya etc..