He also worked on some parts of the Viceregal House ( now Rashtrapati Bhavan ) and Vijay Chowk .
For the South Block and War Memorial Arch ( now India Gate ) , Sir Sobha was the sole builder .
Sobha also worked on some parts of the Viceregal House ( now Rashtrapati Bhavan ) and Vijay Chowk .
For the South Block and War Memorial Arch ( now India Gate ) , Sir Sobha was the sole builder .