Explanation:

- Here’s the thing: The All-India Khilafat Conference in November 1919 was actually held at Delhi Gate, Delhi is not correct—the answer is Lucknow.

- Option 1: Lucknow

- This is the city where the conference took place in November 1919.

- Big names in the freedom movement gathered here to discuss the Khilafat issue, aiming to rally Indian Muslims and unite them with the wider independence struggle.

- Option 2: Delhi

- Nope, the conference you’re asking about wasn’t in Delhi. There were lots of nationalist meetings in Delhi, but not this particular Khilafat Conference in November 1919.

- Option 3: Bombay

- Bombay (now Mumbai) was definitely central to the nationalist movement, but not the site for this event.

- Option 4: Lahore

- Similar story. Lahore saw plenty of big gatherings, but not this one in November 1919.

So, the straight answer: Lucknow. That’s where the All-India Khilafat Conference happened in November 1919. If you remember one thing from this, make it that city.