The minister also announced a cash award of Rs one lakh to coach Satpal Singh.
Roy said, "I congratulate him for his performance and we are proud of Sushil Kumar as he is a part of the railway family."
The minister said the Railways would continue to support and inspire sporting personalities who are part of the family.
Kumar, who is an employee of Indian railways, settled for silver after he was defeated today by Japanese wrestler Tatsuhiro Yonemitsu in the finals.
