Changes

Many definitions as per Nirukta (10.8) <ref>http://vedicreserve.mum.edu/</ref> for example : इरां ददातीति वा ॥ irāṁ dadātīti vā,  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 minutely studied and water cycle was well established during the vedic period. Astrologically also the correlation of nakshtra constellations with the formation of clouds and rains have been identified.   

Many definitions as per Nirukta (10.8) <ref>http://vedicreserve.mum.edu/</ref> for example : इरां ददातीति वा ॥ irāṁ dadātīti vā,  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 minutely studied and water cycle was well established during the vedic period. Astrologically also the correlation of nakshtra constellations with the formation of clouds and rains have been identified.   

By a study of the scriptures as an application to modern science, Sri. C V B Subrahmanyam proposed a relationship between Indra and Vrttrasura yudda (as mentioned in Rig veda mantras) along with the story Maruts (as given in Ramayana and Vishnu Purana) that clearly refers this natural phenomenon. The concept is extended to how lightning (vajraayudha the lighting bolt) can be used to pierce through the strong circling winds (Vrttra) and clouds (Indra's strength) and control cyclones.       

By a study of the scriptures as an application to modern science, Sri. C V B Subrahmanyam<ref>Dr. C V B Subrahmanyam and Ch V Ananth, Vedic Sciences - Applicability to Modern Life (2013). Vedic Seminar Series, USCEFI, Hyderabad</ref> proposed a relationship between Indra and Vrttrasura yudda (as mentioned in Rig veda mantras) along with the story Maruts (as given in Ramayana and Vishnu Purana) that clearly refers this natural phenomenon. The concept is extended to how lightning (vajraayudha the lighting bolt) can be used to pierce through the strong circling winds (Vrttra) and clouds (Indra's strength) and control cyclones.       

'''Rig Veda (1.32)'''<blockquote>अहन् वृत्रं वृत्रतरं व्यंसमिन्द्रो वज्रेण महता वधेन । स्कन्धांसीव कुलिशेना विवृक्णाऽहि: शयत उपपृक् पृथिव्याः ॥५ (Rig. Veda. 1.32.5)<ref name=":2">http://ignca.nic.in/Vedic_portal_rigveda_shakala_Samhita.htm</ref></blockquote>Meaning : Indra killed Vrttra by the fatal blows of his Vajraayudha (lightning strike). Just like how an axe is used to cut down the branches of a tree which falls down to the ground.  

'''Rig Veda (1.32)'''<blockquote>अहन् वृत्रं वृत्रतरं व्यंसमिन्द्रो वज्रेण महता वधेन । स्कन्धांसीव कुलिशेना विवृक्णाऽहि: शयत उपपृक् पृथिव्याः ॥५ (Rig. Veda. 1.32.5)<ref name=":2">http://ignca.nic.in/Vedic_portal_rigveda_shakala_Samhita.htm</ref></blockquote>Meaning : Indra killed Vrttra by the fatal blows of his Vajraayudha (lightning strike). Just like how an axe is used to cut down the branches of a tree which falls down to the ground.