Concept:
• Ibn Battuta was a Moroccan traveler who visited India in the 14th century and wrote detailed accounts in his travelogue, the 'Rihla'.
• He documented the urban centers, political state, and socio-economic conditions of Delhi under the Delhi Sultanate.
Step 1: Verifying statements I, II, and III
Ibn Battuta described Delhi as a vast and populous city, bustling with people.
He wrote extensively about the vibrant markets, noting they were centers for both economic activity and social gatherings.
Step 2: Evaluating statement IV
He explicitly stated that India's markets were linked to international trade networks, with goods coming from across the globe (e.g., silk from China).
Therefore, the claim that Delhi was "isolated from Asian trade" is false.