Explanation:

- The Shontong Karcham Hydro Electric Power Project is a significant hydroelectric project in India.

- Its primary aim is to harness the water flow from rivers to generate electricity.

- The power generated from such projects is often used to provide electricity to the nearby regions, adding value to local energy needs.

Option 1, 195 MW:

This capacity is associated with some smaller hydroelectric projects, but it's not correct for Shontong Karcham.

Option 2, 100 MW:

This is a lower capacity figure and doesn't apply to the Shontong Karcham project.

Option 3, 205 MW:

This is still not a match for the Shontong Karcham project.

Option 4, 450 MW:

This is the correct capacity for the Shontong Karcham Hydro Electric Power Project.

.