You are planning to start an affiliate marketing business Can anybody suggest an institute to take training for that?

There are several online. At least one runs a $1.00 14 day trial and if you don't think there training program is suitable for you needs, you can cancel your subscription within those 14 days.

Choose a site that teaches what you need to know to become an affiliate or a vendor. Shop around, make comparisons, and see what site best suits your needs.