The Indian men's ended the event with five medals in the freestyle category.
In the clip, which shows Ravi making the final move before claiming the game in his favour, Nurislam could be seen biting Ravi on his right hand.
The fourth seeded Indian became the fifth Indian wrestler after KD Jadhav, Sushil Kumar, Yogeshwar and Sakshi Malik to win an Olympic medal.
Dahiya will face Zaur Uguev of Russia in the final on Thursday.
In the lifetime achievement category (Dronacharya), the names of Jagroop Rathi, R K Hooda and R S Kundu have been nominated.
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