We are back with another exciting edition of Rahasya. In today's episode, we will take you to Bhimbetka rock shelters in Madhya Pradesh's Raisen district. The cave which is a UNESCO world heritage site has seven hills and several paintings. Interestingly, the oldest paintings are said to be 30,000 years old. It is also said that the cave provides evidence of human cultural evolution. Watch News Nation's detailed report on the mysterious cave shelters.
