By Shivam Pathania Illustration: Sundara Moorthy The Vajra or the thunderbolt is the mighty weapon in the possession of Indra, the god of rain, storms and lightning, who is also the king of all devas. The mighty god first used his weapon on an asura called Vritra, who is an embodiment of the drought in the Rig Veda. This makes him the natural enemy of Indra, who is responsible for rains that end droughts. In the Vedas, Indra slew the serpent asura and freed the rivers that the asura had kept captive in his fortress.  ...