What are the types of plate boundaries?

There are three types of plate boundaries. They are: 

• Divergent Boundaries: New crust is generated as the plates pull away from each other. The sites where the plates move away from each other are called spreading sites. Example: Mid-Atlantic Ridge
• Convergent Boundaries: The crust is destroyed as one plate dived under another. The location where the sinking of a plate occurs is called a subduction zone. There are three ways in which convergence can occur. These are: 
• Between an oceanic and continental plate; 
• Between two oceanic plates; and 
• Between two continental plates.
• Transform Boundaries: The crust is neither produced nor destroyed as the plates slide horizontally past each other.

Further Reading:

• NCERT Notes: Continental Drift [Geography Notes For UPSC]
• Geography Notes