Drogheda-born star was in buoyant mood after the Royals sealed an automatic place in next year's English top flight
Harte, who joined the Royals in August 2010 from Carlisle, has keen a key player in Brian McDermott's side this season, playing 29 times and scoring four goals.
"It's pretty special, considering just over two years ago I was in League One, but I'm going back to the Premiership so I'm absolutely chuffed. There's a great bunch of lads here and great togetherness and we want to win the league," Harte told Sky Sports News.
The 34-year old was part of David O'Leary's young Leeds United team of the late 90s and early 2000s and remained at Elland Road until their relegation from the top flight in 2004. He also played in Spain with Levante before returning to England with stints at Sunderland, Blackpool and Carlisle United.
Harte admitted the Royals didn't play well against Forest but they can nonetheless seal the Championship title on Saturday with a victory over Crystal Palace.
"We didn't play well tonight but we had to dig out the result. I'm sure it'll be a big party here on Saturday and hopefully we'll get another three points and win the league," added Harte.