Pros

1. Modernized India.

2. Helped the education system

3. Removal of social practices like Sati, child marriage, untouchability.

4. Made indian railways

5. Built dams, ports, roads, hill stations, town halls, parliament.

6. Gave Vaccination for smallpox

7. Cons

7.1. Loss of life

7.2. Tax stuctures

7.3. Enslaved and Tortured some Indians

7.4. Racism

7.5. Ruined India's previous economy and industries