Concept:
- Congress sessions are easiest to remember by linking each one to the single decision that made it famous.
- Working backwards from the decision of 1927 gives the city without having to memorise a long list.
Step 1: Recall what happened in the country in 1927.
The British government appointed the Simon Commission in that year, and the appointment caused anger because the Commission had no Indian member.
Step 2: Link the event to the Congress response.
The Congress needed to take a formal position, and it did so at its annual session that year by resolving to boycott the Simon Commission in all its forms.
Step 3: Name the host city of that session.
That session met in the south, at
Madras, which is today called Chennai.
Step 4: Separate it from the nearby sessions.
The session at Lahore in 1929 is the one linked with Purna Swaraj, and the session at Karachi in 1931 followed the Gandhi Irwin Pact. Neither belongs to 1927.
Final Answer: The 1927 session of the Indian National Congress was held at Madras, now Chennai.