Astravidya: Ancient Mysterious Weapons As Powerful As Nuclear Bombs | Nuclear Weapons In Mythology

Researchers and archaeologists from around the world tend to look into the past in search of secret knowledge.
So, with every ancient civilization which had a rich knowledge, an unconvincing hypothesis is always associated.
The same goes for the Harappan civilization.
One of the most intriguing mysteries of India is Astravidya.