Consider the following statements regarding Ajanta and Ellora caves:
1. The paintings of Ajanta cave predominantly belong to Buddhism while Ellora is also related to Jainism and Hinduism along with Buddhism.
2. A sculpture on the wall of Kailash temple depicting Ravana shaking Mount Kailasha is part of Ellora caves.
3. Blue colour is absent from Ajanta cave paintings.
Which of the above statements is/are correct?