"I won't blame any of the contestants inside the house but the situations made me turn aggressive. I tried my best to stay sorted but certain circumstances made me lose my temper. It was all very natural and nothing was to provide TV content," Upen told PTI.
The actor said that outbursts are natural on the show because people from different background are holed up together. "It's not me only on the show who turned aggressive. Pritam (Singh), Puneetji (Issar) and Gautam (Gulati) often lost their temper," he said.
Upen, who was initially blamed for not expressing views, said he always put the point of his friends forward and stood up for his female friends - Karishma Tanna, Sonali Raut, Dimpy and Diandra Soares.
"I don't know why people say that I tried to hide myself by being with my friends. I always raised my voice if something objectionable happened to my friends be it Karishma, Sonali or Diandra," he said.
The London-based model-actor said the show has made him a better person. "I have improved my Hindi. I have become a mature and better human being. The stay inside the Bigg Boss house taught me how to handle situations in extreme conditions," Upen said.
He is now gearing up for his debut Tamil release I, where he is playing a negative character. The film is directed by veteran filmmaker Shankar and is slated to release on on January 14.
"The film is my debut in Tamil. I am lucky that I got to work with Shankar in my debut film. I opted for this film because I was not getting anything good in Bollywood for quite a long time," he said.