Step 1: Understanding the Concept:
This question requires identifying the specific quarterly growth rate of the Indian economy mentioned in the case study.
Step 2: Detailed Explanation:
The passage highlights a period of "record beating expansion" for India.
It clearly mentions: "Although, India’s GDP expanded 13.5% in the April-June quarter...".
This high growth rate was instrumental in propelling India to the fifth-largest spot in global rankings.
Step 3: Final Answer:
The Indian GDP grew by 13.5% during the April-June quarter.