Chandigarh was planned by French architect Le Corbusier as the capital of Punjab and Haryana states. He designed the city's grid plan layout with sectors, open green spaces, and a hierarchy of roads. Key buildings include the Capitol Complex with the Secretariat, High Court, and Legislative Assembly buildings. Each sector is self-sufficient and connected by roads, with amenities, greenspaces, and varying housing. Le Corbusier's modernist designs aimed to incorporate principles of function, light, and greenery into Chandigarh's planning.