are yellow spot and blind spot the same or they different

No, both of them are different.

Yellow spot or macula lutea is the small area of the optical part of the retina lying exactly opposite the centre of the cornea. It has yellow pigment, Xanthophyll. It is visible only when retina is examined with red- free light. 

A blind spot or scotoma, is an obscuration of the visual field.  It is the point of entry of the optic nerve on the retina, insensitive to light. An area where a person's view is obstructed.