Option 1: Gulf of Cambay/Khambhat

Option 2: Gulf of Mannar

Option 3: Lakshadweep

Option 4: Andaman and Nicobar Islands

The correct answer is Option 1: Gulf of Cambay/Khambhat. This site does not have coral reef formation.

Coral reefs are diverse underwater ecosystems formed by calcium carbonate secreted by corals. They are typically found in warm, clear, shallow waters.

Option 2: Gulf of Mannar does have coral reef formations. Located along the southeast coast of India, it is known for its rich biodiversity and is home to a variety of marine species.

Option 3: Lakshadweep also has coral reef formations. It is an archipelago located off the southwestern coast of India. The coral reefs in Lakshadweep are known for their vibrant colors and diverse marine life.

Option 4: Andaman and Nicobar Islands have extensive coral reef formations. These islands are located in the Bay of Bengal and are known for their pristine beaches and rich marine ecosystems.

Therefore, the only site listed that does not have coral reef formation is Gulf of Cambay/Khambhat.