There are several rare fruit juices available in India. Some of them are: 

1. Kokum juice - extracted from the fruit of kokum tree found in Western Ghats 

2. Jamun juice - extracted from Indian blackberry or jamun fruit, known for diabetes management 

3. Amla juice - extracted from Indian gooseberry which is a rich source of Vitamin C 

4. Phalsa juice - extracted from Indian sherbet berry which is an excellent coolant 

5. Bel juice - extracted from bael fruit which is highly nutritious and has medicinal properties 

6. Wood apple juice - extracted from the fruit of bael tree and is known for its digestive properties. 

These are just some of the rare fruit juices available in India. There are many more delicious and nutritious juices made from unique and exotic fruits found in different parts of the country.