What are the characteristics of ancient Indian iron age rock paintings?

The authors of early rock paintings of india were all primitive tribes, and caves were both their shelters and their galleries. These rock paintings are mainly painted on sandstone. Later rock paintings show the contents of human life, such as horse riding, elephant riding and war, as well as witchcraft and symbols belonging to reproductive worship. As can be seen from the picture, the samurai at that time were already using swords and shields. Therefore, they are obviously works of the Iron Age. The pigments used are red, black, pink, green, blue, yellow, orange and purple, all of which are natural mineral pigments.