Explanation:

- The International Financial Services Centres Authority (IFSCA) was established to oversee financial services, products, and financial institutions in the International Financial Services Centres (IFSCs) in India.

- Option 1: Mumbai is India's financial capital but not where IFSCA is headquartered.

- Option 2: New Delhi is India's national capital, unlikely as headquarters for IFSCA.

- Option 3: Bangalore is known for technology, not financial services.

- Option 4: Gandhinagar is the headquarters of IFSCA. It's located in the Gujarat International Finance Tec-City (GIFT City), a burgeoning financial hub.

- Option 5: Bhopal is the capital of Madhya Pradesh, not a financial hub.

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