HI now has 15 associate members, with 28 affiliated members and two state Olympic association members.
With this inclusion, Hockey Hyderabad can take part in all national championships to be conducted by HI in future.
"The entry of Hockey Hyderabad would play a major role in promoting and developing hockey in its traditional fashion and would give an opportunity for young talent to showcase their skills to Hockey Hyderabad," HI secretary general Narinder Batra said in a statement.
"We are hopeful that three times Olympian N Mukesh Kumar, who is the secretary of Hockey Hyderabad and its other members who are former international players can help in the growth of the sport at the grassroot level.
Jayesh Ranjan (IAS) is the president while N Mukesh Kumar is the secretary of Hockey Hyderabad.