He was given the name of black tiger by then India's home minister. He spent most of his life staying away from his country, family and sacrificed his life to the service of the nation. But in 1983, Indian intelligence had sent an agent to find out about black tiger but he was caught by Pakistani intelligence agency and revealed Ravindra's actual identity. Kaushik requested help from Indian government to give shelter to him in this tough time but he was denied of any help from the Indian government. He was caught in Sialkot, where he was given death sentence. But it was converted to life term. He died in 2001 due to Asthama and TB.
When Ek tha Tiger was releasing his family sent a legal notice to the producers, claiming that the movie has striking resemblance to Kaushik's life. While director of the movie denies of any resemblance in movie's script with his life.
But I believe that this man deserves a respect and salute from all of us !!