Changes

Many definitions as per Nirukta indicate Indra's association with water, clouds and winds.  Through the study of the water cycle, one can understand the formation of rain and the inter-relativity of sun, clouds and water precipitation. From the following mantras of Rig Veda, it can be understood that the natural phenomenon of clouds, lighting and rains have been well studied and water cycle was well established during the vedic period.  

Many definitions as per Nirukta indicate Indra's association with water, clouds and winds.  Through the study of the water cycle, one can understand the formation of rain and the inter-relativity of sun, clouds and water precipitation. From the following mantras of Rig Veda, it can be understood that the natural phenomenon of clouds, lighting and rains have been well studied and water cycle was well established during the vedic period.  

A study of the scriptures by Sri. C V B Subrahmanyam as applied to modern science proposed a close correlation between Indra and Vrttrasura yudda (as mentioned in Rig veda mantras) and the story of origin of Maruts (as given in Ramayana) revealing the secrets of how lightning (vajraayudha) can be used to pierce through the strong circling winds and clouds (Indra's strength) and bring about rains.

A study of the scriptures by Sri. C V B Subrahmanyam as applied to modern science proposed a close correlation between Indra and Vrttrasura yudda (as mentioned in Rig veda mantras) and the story of origin of Maruts (as given in Ramayana and Vishnu Purana) revealing the secrets of how lightning (vajraayudha) can be used to pierce through the strong circling winds and clouds (Indra's strength) and bring about rains.  

यदि॒न्द्राह॑न् प्रथम॒जामही॑ना॒मान्मा॒यिना॒ममि॑ना॒: प्रोत मा॒याः । आत् सूर्यं॑ ज॒नय॒न् द्यामु॒षासं॑ ता॒दीत्ना॒ शत्रुं॒ न किला॑ विवित्से ॥४ (Rig. Veda. 1.32.4)

यदि॒न्द्राह॑न् प्रथम॒जामही॑ना॒मान्मा॒यिना॒ममि॑ना॒: प्रोत मा॒याः । आत् सूर्यं॑ ज॒नय॒न् द्यामु॒षासं॑ ता॒दीत्ना॒ शत्रुं॒ न किला॑ विवित्से ॥४ (Rig. Veda. 1.32.4)